The document discusses various types of audit software and tools used by auditors. It describes generalized audit software (GAS) that can automate audit tasks and specialized audit software designed for specific audit objectives. It also covers integrated test facilities, snapshot techniques, data security procedures like backups, replication, and server clusters. The system development life cycle and auditor's role in reviewing each phase is explained.
Software testing and introduction to qualityDhanashriAmbre
The document provides an overview of software testing and quality assurance. It defines software testing as a process to investigate quality and find defects between expected and actual results. Testing is necessary to ensure software is defect-free per customer specifications and increases reliability. The document then discusses types of errors like ambiguous specifications, misunderstood specifications, and logic/coding errors. It outlines the software development life cycle including phases like planning, analysis, design, coding, testing, implementation, and maintenance. Each phase is described in 1-2 sentences.
Online auction system is web based application, in which the seller can sell the goods by sitting in his own house ,so the main advantage of this application is that there is no more system compatibility requirement problem. The main advantage of the online auction system is that the user can have the better choices for their investment and also it is time saving , and through this system user can invest in their own selected firm.
Here are the DFD diagrams for the Online Auction System:
Level 0 (Context Level) DFD:
Online Auction System (Context Diagram)
Seller - Post Product Details
Buyer - View Auction Updates, Search Products, View Products
Level 1 DFD:
Online Auction System
Seller
- Post Product
- Product Details
Buyer
- Search Products
- View Products Details
Administrator
- Manage Products
- Manage Users
Database
- Product Details
- User Details
This shows the basic data flows in and out of the overall Online Auction System at a high level (Level 0) and then breaks it down further
The document discusses various aspects of software processes and life cycles. It describes three types of reusable software components: web services, object collections, and stand-alone systems. It also outlines common phases in a software life cycle like requirements analysis, design, implementation, testing, deployment, and maintenance. Incremental delivery approaches are discussed where early increments are delivered to customers.
The document discusses various aspects of software processes and life cycles. It describes three types of reusable software components: web services, object collections, and stand-alone systems. It also outlines common phases in a software life cycle like requirements analysis, design, implementation, testing, deployment, and maintenance. Incremental delivery approaches are discussed where early increments are delivered to customers.
ISE_Lecture Week 2-SW Process Models.pptHumzaWaris1
The document discusses various software development processes. It begins by defining a software process as a framework that describes the activities performed at each stage of a project. It then categorizes common activities as software specification, development, validation, and evolution. The document goes on to describe plan-driven and agile processes, and notes that most practical processes include elements of both. It provides details on specific process models like waterfall, V-model, prototyping, incremental development, component-based development, and spiral model.
Report on SOFTWARE DEVELOPMENT LIFE CYCLE SDLC Neetu Marwah
The document discusses the software development life cycle (SDLC). It describes SDLC as a process used in software engineering to break down development into distinct phases to better plan and manage projects. The phases include requirements study, design, development, testing, and maintenance. The document outlines each phase in detail and notes the key documents produced and activities involved at each stage of the SDLC process.
Software Engineering Important Short Question for ExamsMuhammadTalha436
The document discusses various topics related to software engineering including:
1. The software development life cycle (SDLC) and its phases like requirements, design, implementation, testing, etc.
2. The waterfall model and its phases from modeling to maintenance.
3. The purpose of feasibility studies, data flow diagrams, and entity relationship diagrams.
4. Different types of testing done during the testing phase like unit, integration, system, black box and white box testing.
Software testing and introduction to qualityDhanashriAmbre
The document provides an overview of software testing and quality assurance. It defines software testing as a process to investigate quality and find defects between expected and actual results. Testing is necessary to ensure software is defect-free per customer specifications and increases reliability. The document then discusses types of errors like ambiguous specifications, misunderstood specifications, and logic/coding errors. It outlines the software development life cycle including phases like planning, analysis, design, coding, testing, implementation, and maintenance. Each phase is described in 1-2 sentences.
Online auction system is web based application, in which the seller can sell the goods by sitting in his own house ,so the main advantage of this application is that there is no more system compatibility requirement problem. The main advantage of the online auction system is that the user can have the better choices for their investment and also it is time saving , and through this system user can invest in their own selected firm.
Here are the DFD diagrams for the Online Auction System:
Level 0 (Context Level) DFD:
Online Auction System (Context Diagram)
Seller - Post Product Details
Buyer - View Auction Updates, Search Products, View Products
Level 1 DFD:
Online Auction System
Seller
- Post Product
- Product Details
Buyer
- Search Products
- View Products Details
Administrator
- Manage Products
- Manage Users
Database
- Product Details
- User Details
This shows the basic data flows in and out of the overall Online Auction System at a high level (Level 0) and then breaks it down further
The document discusses various aspects of software processes and life cycles. It describes three types of reusable software components: web services, object collections, and stand-alone systems. It also outlines common phases in a software life cycle like requirements analysis, design, implementation, testing, deployment, and maintenance. Incremental delivery approaches are discussed where early increments are delivered to customers.
The document discusses various aspects of software processes and life cycles. It describes three types of reusable software components: web services, object collections, and stand-alone systems. It also outlines common phases in a software life cycle like requirements analysis, design, implementation, testing, deployment, and maintenance. Incremental delivery approaches are discussed where early increments are delivered to customers.
ISE_Lecture Week 2-SW Process Models.pptHumzaWaris1
The document discusses various software development processes. It begins by defining a software process as a framework that describes the activities performed at each stage of a project. It then categorizes common activities as software specification, development, validation, and evolution. The document goes on to describe plan-driven and agile processes, and notes that most practical processes include elements of both. It provides details on specific process models like waterfall, V-model, prototyping, incremental development, component-based development, and spiral model.
Report on SOFTWARE DEVELOPMENT LIFE CYCLE SDLC Neetu Marwah
The document discusses the software development life cycle (SDLC). It describes SDLC as a process used in software engineering to break down development into distinct phases to better plan and manage projects. The phases include requirements study, design, development, testing, and maintenance. The document outlines each phase in detail and notes the key documents produced and activities involved at each stage of the SDLC process.
Software Engineering Important Short Question for ExamsMuhammadTalha436
The document discusses various topics related to software engineering including:
1. The software development life cycle (SDLC) and its phases like requirements, design, implementation, testing, etc.
2. The waterfall model and its phases from modeling to maintenance.
3. The purpose of feasibility studies, data flow diagrams, and entity relationship diagrams.
4. Different types of testing done during the testing phase like unit, integration, system, black box and white box testing.
The document discusses different approaches to systems building, including the traditional systems lifecycle model consisting of definition, feasibility, design, development, testing, implementation, evaluation and maintenance phases. It also covers prototyping, using application software packages, end-user development, outsourcing, structured methodologies, object-oriented development, computer-aided software engineering and software reengineering.
The document provides an overview of fundamentals of software development including definitions of software, characteristics of software, software engineering, layered approach to software engineering, need for software engineering, and common software development life cycle models. It describes system software and application software. It outlines characteristics like understandability, cost, maintainability, modularity, reliability, portability, documentation, reusability, and interoperability. It also defines software engineering, layered approach, and need for software engineering. Finally, it explains popular life cycle models like waterfall, iterative waterfall, prototyping, spiral, and RAD models.
The document discusses the system development life cycle (SDLC), which includes various phases for developing and maintaining systems. The key phases are: system investigation, feasibility study, system analysis, system design, coding, testing, implementation, and maintenance. The feasibility study phase evaluates the technical, operational, economic, motivational, and schedule feasibility of a proposed system. The system analysis phase involves studying user requirements and the current system. System design then specifies how the new system will meet requirements through elements like data design, user interface design, and process design. This produces specifications for the system.
The document discusses the Software Development Life Cycle (SDLC), outlining its main phases: planning, requirements analysis, feasibility study, system design, development/coding, system testing, implementation, and maintenance. It provides details on each phase, explaining their key activities and purposes. The SDLC is presented as a process used by systems analysts to develop information systems according to requirements, while ensuring quality, on-time and on-budget completion, effective performance, and cost-efficient maintenance.
Software Testing and Quality Assurance Assignment 3Gurpreet singh
Short questions :
Que 1 : Define Software Testing.
Que 2 : What is risk identification ?
Que 3 : What is SCM ?
Que 4 : Define Debugging.
Que 5 : Explain Configuration audit.
Que 6 : Differentiate between white box testing & black box testing.
Que 7 : What do you mean by metrics ?
Que 8 : What do you mean by version control ?
Que 9 : Explain Object Oriented Software Engineering.
Que 10 : What are the advantages and disadvantages of manual testing tools ?
Long Questions:
Que 1 : What do you mean by baselines ? Explain their importance.
Que 2 : What do you mean by change control ? Explain the various steps in detail.
Que 3 : Explain various types of testing in detail.
Que 4 : Differentiate between automated testing and manual testing.
Que 5 : What is web engineering ? Explain in detail its model and features.
The document describes the system development life cycle (SDLC), which is a process used to develop, implement, and retire information systems through several steps: initiation, analysis, design, implementation, and maintenance. It involves analyzing user needs, designing the system, coding, testing, implementation, and maintenance. The waterfall model is presented as a common SDLC approach, consisting of sequential phases from requirements analysis through maintenance. Other SDLC models mentioned include iterative, spiral, object-oriented, rapid application development, and joint application development.
The document discusses software development lifecycles and strategies. It describes:
1) Common lifecycle activities like planning, development, testing and maintenance. Different models can be used depending on the product.
2) Solution strategies are developed to determine the nature of possible solutions and provide a framework for design and implementation. The best strategies are developed by trained groups using techniques like brainstorming.
3) The phased lifecycle model involves a series of defined activities with inputs, processes, and outputs at each phase. Resources are required to complete each defined phase.
The document discusses various aspects of planning and managing the software development process, including:
1) Developing a solution strategy and selecting a software life cycle model to provide a framework for the project.
2) Common software life cycle activities like planning, development, testing, and maintenance.
3) Using milestones, documents, and reviews to improve project visibility and management.
4) Organizing development tasks and teams using different structures like project, functional, and matrix formats.
This document provides an overview of system development and information systems. It discusses reasons for creating or modifying systems, such as to correct problems or improve existing systems. It then describes the system development life cycle process, which involves six phases: preliminary investigation, system analysis, system design, system development, system implementation, and system operation and maintenance. It also discusses topics such as the roles of systems analysts, feasibility analysis, different approaches to system development, and implementation considerations.
Software is a set of instructions and data structures that enable computer programs to provide desired functions and manipulate information. Software engineering is the systematic development and maintenance of software. It differs from software programming in that engineering involves teams developing complex, long-lasting systems through roles like architect and manager, while programming involves single developers building small, short-term applications. A software development life cycle like waterfall or spiral model provides structure to a project through phases from requirements to maintenance. Rapid application development emphasizes short cycles through business, data, and process modeling to create reusable components and reduce testing time.
The document discusses the software development life cycle (SDLC). It describes the typical phases of SDLC including problem definition, program design, coding, debugging, testing, documentation, maintenance, and extension/redesign. It also covers different SDLC models like waterfall, prototyping, and agile development. The SDLC process is best for structured environments while iterative models work better for web and e-commerce projects where frequent stakeholder feedback is needed.
This document discusses the auditor's role in the system development life cycle (SDLC). It outlines three main objectives for auditing systems under development: 1) assessing project management efficiency and effectiveness, 2) evaluating data integrity and security controls, and 3) assessing operational controls. It describes how auditors can review documentation, attend meetings, and interview personnel to evaluate compliance with project standards and control objectives. Auditors may rate different SDLC phases and include technical experts when auditing technical work products. Key control considerations for auditors in the SDLC are also listed.
The document discusses the objectives, feasibility study, and implementation specifications for an Income Tax Department Management System project. The objectives are to overcome paper-based problems and easily manage records of PAN card holders and employees. A feasibility study assesses the technical, operational, and economic feasibility of the proposed system. The implementation will use ASP.NET on Windows with a SQL Server database. Hardware requirements include a Pentium PC with 512MB RAM and 80GB hard drive.
This document discusses systems analysis and the waterfall model of software development. It describes the stages of systems analysis including investigation, design, and implementation with user consultation. The design stage produces a system specification detailing materials, procedures, hardware requirements, and inputs/outputs. Systems are monitored after implementation for changes. The waterfall model stages are feasibility, requirements analysis, design specification, coding, testing, and maintenance. Prototyping is discussed as an alternative that involves users earlier to detect issues and ensure requirements are met.
The software process involves specification, design and implementation, validation, and evolution activities. It can be modeled using plan-driven approaches like the waterfall model or agile approaches. The waterfall model involves separate sequential phases while incremental development interleaves activities. Reuse-oriented processes focus on assembling systems from existing components. Real processes combine elements of different models. Specification defines system requirements through requirements engineering. Design translates requirements into a software structure and implementation creates an executable program. Validation verifies the system meets requirements through testing. Evolution maintains and changes the system in response to changing needs.
This document provides information about obtaining fully solved assignments from an assignment help service. It lists the email and phone contact information and requests students to send their semester and specialization to receive help with assignments. It also lists some of the programs and subjects that assignments are available for, including MBADS, MBAFLEX, MBAN2, and PGDISMN.
Introduction To Software Concepts Unit 1 & 2Raj vardhan
This document provides an overview of Module 1 of an introduction to software concepts course. It covers the following topics: definitions of software, importance of software, types of software, software components, members involved in software development, and an overview of the software development life cycle (SDLC). Specifically, it defines software, discusses why it is important, lists common software types and components. It also outlines the roles of various members in software development projects, such as subject matter experts, functional analysts, developers, testers, and project managers. Finally, it provides a high-level overview of the waterfall model for the SDLC.
This document discusses rapid software development methods like agile development and extreme programming (XP). It explains that agile methods use iterative development with customer involvement to quickly deliver working software. XP in particular emphasizes practices like test-driven development, pair programming, and frequent small releases. The document also covers rapid application development tools and the use of prototypes to help define requirements before full system development.
The document provides an overview of software testing. It defines software and describes different types, including system software, programming software, and application software. It then discusses objectives of testing like ensuring requirements are met and finding defects. Testing types include black box, white box, and interface testing. The software testing life cycle is also explained as a sequence of requirement analysis, test planning, case development, execution, and closure.
This document provides an overview of software development lifecycles and testing. It discusses the typical phases of the SDLC, including planning, analysis, design, implementation, and maintenance. It describes two common SDLC methodologies: the waterfall model and agile/scrum model. It also defines different types of testing like static vs dynamic, verification vs validation, functional testing, regression testing, and smoke testing. Finally, it provides details on unit, integration, system, and user acceptance testing.
The document discusses different approaches to systems building, including the traditional systems lifecycle model consisting of definition, feasibility, design, development, testing, implementation, evaluation and maintenance phases. It also covers prototyping, using application software packages, end-user development, outsourcing, structured methodologies, object-oriented development, computer-aided software engineering and software reengineering.
The document provides an overview of fundamentals of software development including definitions of software, characteristics of software, software engineering, layered approach to software engineering, need for software engineering, and common software development life cycle models. It describes system software and application software. It outlines characteristics like understandability, cost, maintainability, modularity, reliability, portability, documentation, reusability, and interoperability. It also defines software engineering, layered approach, and need for software engineering. Finally, it explains popular life cycle models like waterfall, iterative waterfall, prototyping, spiral, and RAD models.
The document discusses the system development life cycle (SDLC), which includes various phases for developing and maintaining systems. The key phases are: system investigation, feasibility study, system analysis, system design, coding, testing, implementation, and maintenance. The feasibility study phase evaluates the technical, operational, economic, motivational, and schedule feasibility of a proposed system. The system analysis phase involves studying user requirements and the current system. System design then specifies how the new system will meet requirements through elements like data design, user interface design, and process design. This produces specifications for the system.
The document discusses the Software Development Life Cycle (SDLC), outlining its main phases: planning, requirements analysis, feasibility study, system design, development/coding, system testing, implementation, and maintenance. It provides details on each phase, explaining their key activities and purposes. The SDLC is presented as a process used by systems analysts to develop information systems according to requirements, while ensuring quality, on-time and on-budget completion, effective performance, and cost-efficient maintenance.
Software Testing and Quality Assurance Assignment 3Gurpreet singh
Short questions :
Que 1 : Define Software Testing.
Que 2 : What is risk identification ?
Que 3 : What is SCM ?
Que 4 : Define Debugging.
Que 5 : Explain Configuration audit.
Que 6 : Differentiate between white box testing & black box testing.
Que 7 : What do you mean by metrics ?
Que 8 : What do you mean by version control ?
Que 9 : Explain Object Oriented Software Engineering.
Que 10 : What are the advantages and disadvantages of manual testing tools ?
Long Questions:
Que 1 : What do you mean by baselines ? Explain their importance.
Que 2 : What do you mean by change control ? Explain the various steps in detail.
Que 3 : Explain various types of testing in detail.
Que 4 : Differentiate between automated testing and manual testing.
Que 5 : What is web engineering ? Explain in detail its model and features.
The document describes the system development life cycle (SDLC), which is a process used to develop, implement, and retire information systems through several steps: initiation, analysis, design, implementation, and maintenance. It involves analyzing user needs, designing the system, coding, testing, implementation, and maintenance. The waterfall model is presented as a common SDLC approach, consisting of sequential phases from requirements analysis through maintenance. Other SDLC models mentioned include iterative, spiral, object-oriented, rapid application development, and joint application development.
The document discusses software development lifecycles and strategies. It describes:
1) Common lifecycle activities like planning, development, testing and maintenance. Different models can be used depending on the product.
2) Solution strategies are developed to determine the nature of possible solutions and provide a framework for design and implementation. The best strategies are developed by trained groups using techniques like brainstorming.
3) The phased lifecycle model involves a series of defined activities with inputs, processes, and outputs at each phase. Resources are required to complete each defined phase.
The document discusses various aspects of planning and managing the software development process, including:
1) Developing a solution strategy and selecting a software life cycle model to provide a framework for the project.
2) Common software life cycle activities like planning, development, testing, and maintenance.
3) Using milestones, documents, and reviews to improve project visibility and management.
4) Organizing development tasks and teams using different structures like project, functional, and matrix formats.
This document provides an overview of system development and information systems. It discusses reasons for creating or modifying systems, such as to correct problems or improve existing systems. It then describes the system development life cycle process, which involves six phases: preliminary investigation, system analysis, system design, system development, system implementation, and system operation and maintenance. It also discusses topics such as the roles of systems analysts, feasibility analysis, different approaches to system development, and implementation considerations.
Software is a set of instructions and data structures that enable computer programs to provide desired functions and manipulate information. Software engineering is the systematic development and maintenance of software. It differs from software programming in that engineering involves teams developing complex, long-lasting systems through roles like architect and manager, while programming involves single developers building small, short-term applications. A software development life cycle like waterfall or spiral model provides structure to a project through phases from requirements to maintenance. Rapid application development emphasizes short cycles through business, data, and process modeling to create reusable components and reduce testing time.
The document discusses the software development life cycle (SDLC). It describes the typical phases of SDLC including problem definition, program design, coding, debugging, testing, documentation, maintenance, and extension/redesign. It also covers different SDLC models like waterfall, prototyping, and agile development. The SDLC process is best for structured environments while iterative models work better for web and e-commerce projects where frequent stakeholder feedback is needed.
This document discusses the auditor's role in the system development life cycle (SDLC). It outlines three main objectives for auditing systems under development: 1) assessing project management efficiency and effectiveness, 2) evaluating data integrity and security controls, and 3) assessing operational controls. It describes how auditors can review documentation, attend meetings, and interview personnel to evaluate compliance with project standards and control objectives. Auditors may rate different SDLC phases and include technical experts when auditing technical work products. Key control considerations for auditors in the SDLC are also listed.
The document discusses the objectives, feasibility study, and implementation specifications for an Income Tax Department Management System project. The objectives are to overcome paper-based problems and easily manage records of PAN card holders and employees. A feasibility study assesses the technical, operational, and economic feasibility of the proposed system. The implementation will use ASP.NET on Windows with a SQL Server database. Hardware requirements include a Pentium PC with 512MB RAM and 80GB hard drive.
This document discusses systems analysis and the waterfall model of software development. It describes the stages of systems analysis including investigation, design, and implementation with user consultation. The design stage produces a system specification detailing materials, procedures, hardware requirements, and inputs/outputs. Systems are monitored after implementation for changes. The waterfall model stages are feasibility, requirements analysis, design specification, coding, testing, and maintenance. Prototyping is discussed as an alternative that involves users earlier to detect issues and ensure requirements are met.
The software process involves specification, design and implementation, validation, and evolution activities. It can be modeled using plan-driven approaches like the waterfall model or agile approaches. The waterfall model involves separate sequential phases while incremental development interleaves activities. Reuse-oriented processes focus on assembling systems from existing components. Real processes combine elements of different models. Specification defines system requirements through requirements engineering. Design translates requirements into a software structure and implementation creates an executable program. Validation verifies the system meets requirements through testing. Evolution maintains and changes the system in response to changing needs.
This document provides information about obtaining fully solved assignments from an assignment help service. It lists the email and phone contact information and requests students to send their semester and specialization to receive help with assignments. It also lists some of the programs and subjects that assignments are available for, including MBADS, MBAFLEX, MBAN2, and PGDISMN.
Introduction To Software Concepts Unit 1 & 2Raj vardhan
This document provides an overview of Module 1 of an introduction to software concepts course. It covers the following topics: definitions of software, importance of software, types of software, software components, members involved in software development, and an overview of the software development life cycle (SDLC). Specifically, it defines software, discusses why it is important, lists common software types and components. It also outlines the roles of various members in software development projects, such as subject matter experts, functional analysts, developers, testers, and project managers. Finally, it provides a high-level overview of the waterfall model for the SDLC.
This document discusses rapid software development methods like agile development and extreme programming (XP). It explains that agile methods use iterative development with customer involvement to quickly deliver working software. XP in particular emphasizes practices like test-driven development, pair programming, and frequent small releases. The document also covers rapid application development tools and the use of prototypes to help define requirements before full system development.
The document provides an overview of software testing. It defines software and describes different types, including system software, programming software, and application software. It then discusses objectives of testing like ensuring requirements are met and finding defects. Testing types include black box, white box, and interface testing. The software testing life cycle is also explained as a sequence of requirement analysis, test planning, case development, execution, and closure.
This document provides an overview of software development lifecycles and testing. It discusses the typical phases of the SDLC, including planning, analysis, design, implementation, and maintenance. It describes two common SDLC methodologies: the waterfall model and agile/scrum model. It also defines different types of testing like static vs dynamic, verification vs validation, functional testing, regression testing, and smoke testing. Finally, it provides details on unit, integration, system, and user acceptance testing.
Automotive Engine Valve Manufacturing Plant Project Report.pptxSmith Anderson
The report provides a complete roadmap for setting up an Automotive Engine Valve. It covers a comprehensive market overview to micro-level information such as unit operations involved, raw material requirements, utility requirements, infrastructure requirements, machinery and technology requirements, manpower requirements, packaging requirements, transportation requirements, etc.
EMI and EMC Testing Laboratory Services in India.pdfURS Labs
A crucial stage in the design and production of electrical devices is EMC and EMI testing lab. The FDA, FCC, and ISO, among other regulating organizations, have established strict limitations on the emissions that are permitted from electronic devices.
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2. GENERALIZED AUDIT SOFTWARE
GAS is designed generally for auditors.
GAS is used to achieve audit satisfaction
GAS can’t resolve all of the auditors problems, it
assist in many areas
Examples of GAS is:- Excel
Generalized audit software (GAS) is the tool used
by auditors to automate various audit tasks. As
most accounting transactions are now
computerized, auditing of accounting data is also
expected to be computerized as well, for which
general purpose tools are used by auditors.
3. INTEGRATED TEST FACILITY
An embedded audit facility consisting of program, code, or
additional data provided by the auditor and incorporated into
the computer element of the client’s accounting system.
Integrated test facilities are built-in test environment.
Snapshot
It’s a technique in which known transaction is taken and
follows it through the processing logic of program taking
“Snapshots” at pre-specified places of Program.
Its very highly specialized technique that requires a
relatively high level of computer expertise to interpret the
results
4. CONTD…
The snapshot audit technique is an automated tool
used to trace a specific transaction through
software and to document logic paths, control
conditions, and processing sequences. This
technique can verify program logic flow and help
the auditor understand the various processing steps
within the application software.
This technique involves the installation of a
snapshot software at critical processing points of an
application or a system. The software proceeds to
capture images of the transaction as it flows
through the application and reports to the
administrator immediately.
5. SPECIALIZED AUDIT SOFTWARE
Specialized audit software is written explicitly to
achieve some desired audit objective.
Its data analytical software for auditors
Examples of specialized software are ACL, IDEA
6. PROS & CONS
Advantages of audit software are:-
1.Focused approach
2.It is capable of performing exactly what is
required in a particular application.
3.It meets the needs of auditor
Disadvantages of audit software are as follows:-
1.Limited applicability
2.Development cost
3.High level of expertise required
7. AUDIT OF SYSTEM DEVELOPMENT PROCESS
The success of a system development project is
dependent on the success of key processes: Project
Management, Analysis, Design, Testing &
Implementation.
The auditor’s objectives are
1. to ensure that the controls over a substantial
investment will produce value-for-money
2. to ensure that systems developed meet the internal
control requirements of the business
A. the auditor is required to participate in the key project
management meetings, assess risk, systems design,
development, and systems delivery meetings to
provide ongoing, proactive control recommendations.
B. Alternatively, the auditor reviews the end-stage
deliverables throughout the development process
without becoming a part of the process
8. SYSTEM DEVELOPMENT LIFE CYCLE
Phase 1: Feasibility Study
Phase 2: Requirement Definition
Choose buy or build
Phase 3: System Design Phase 3: System Selection
Phase 4: Configuration
Phase 4: Development Phase 5: Implementation
Phase 6: Postimplementation
Phase 7: Disposal
Build Buy
9. AUDIT OF SYSTEM DEVELOPMENT PROCESS
o Each system development should be risk assessed to
determine the level of auditor’s involvement
o The type of review varies depending on the risks of a
particular project
o Auditors may only be involved in key areas or the entire
development project
Auditors Role in system development
•Control Consultant – Being part of team, not independent member
•Independent Reviewer
10. KEY TASK OF AUDITOR IN SYSTEM
DEVELOPMENT PROCESS
o Review user requirements
o Review manual and application controls
o Check all technical specifications for compliance with company standards
o Perform design walkthroughs at the end of each development phase
o Submit written recommendations for approval after each walk-through
o Ensure implementation of recommendations before beginning the next phase
o Review test plans
o Present findings to management
o Maintain independence to remain objective
These tasks can help minimize control weaknesses and problems before the
system becomes operational rather than after it is in use
11. Phases of System Development Life Cycle
1. Feasibility Study-
This is the first phase in the systems development process. It identifies
whether or not there is the need for a new system to achieve
a business"s strategic objectives. This is a preliminary plan
(or a feasibility study) for a company"s business
initiative to acquire the resources to build on an infrastructure to
modify or improve a service. The company might be trying to
meet or exceed expectations for their employees, customers and
stakeholders too. The purpose of this step is to find out the scope
the problem and determine solutions. Resources, costs, time,
benefits and other items should be considered at this stage.
2. Requirements Definition
The second phase is where businesses will work on the source of their
problem or the need for a change. In the event of a problem, possible
solutions are submitted and analyzed to identify the best fit for the ultimate
goal(s) of the project. This is where teams consider the functional
requirements of the project or solution. It is also where system analysis
takes place—or analyzing the needs of the end users to ensure the new
system can meet their expectations. Systems analysis is vital in
determining what a business"s needs are, as well as how they can be met,
who will be responsible for individual pieces of the project, and what sort
of timeline should be expected.
12. CONTD.
3. System Design
The third phase describes, in detail, the necessary specifications,
features and operations that will satisfy the functional
requirements of the proposed system which will be in place. This
is the step for end users to discuss and determine their specific
business information needs for the proposed system. It"s during
this phase that they will consider the essential components
(hardware and/or software) structure (networking capabilities),
processing and procedures for the system to accomplish its
objectives.
Price of nonconformance (PONC) represents
the added costs of not doing it right the first
time.
Price of conformance (POC) refers to avoiding
the headache by doing it right the first time.
13. CONTD
4. Development
The fourth phase is when the real work begins—in particular, when a
programmer, network engineer and/or database developer are brought
on to do the major work on the project. This work includes using a flow
chart to ensure that the process of the system is properly organized. The
development phase marks the end of the initial section of the process.
Additionally, this phase signifies the start of production. The
development stage is also characterized by instillation and change.
Focusing on training can be a huge benefit during this phase.
A prototype is a small-scale working system used to test assumptions.
These assumptions may be about user requirements, program design, or the
internal logic used in critical functions. Prototypes usually are inexpensive to
build and are created over a short period of time. The principal advantage of
a prototype is that it permits change to occur before the major development
effort begins.
Compiling programs is a process of converting human-readable instructions
into machine language instructions for execution. The human-readable
version of software is referred to as source code. The unreadable compiled
version of the program is referred to as the object code.
Debugging is a systematic process of finding and reducing the number of
bugs, or defects, in a computer program so that it behaves as expected.
14. CONTD….
5. Implementation
Go Live and Changeover
A plan for switching processing from the old system to the
new system
Parallel operation: The old and new systems are run in
parallel, usually for an extended period of time
Phased changeover: In case of larger systems,
converting to the new system is usually done in small
steps or phases.
Hard changeover: A full change occurring at a
particular cutoff date and time. The purpose is to force
migration of all the users at once.
6. Post-implementation
7. Disposal
15. AUDIT OF DATA SECURITY
Data backup and Recovery
To ensure that the critical activities of an organization (and
supporting applications) are not interrupted in the event of a
disaster; secondary storage media are used to store software
application files and associated data for backup purposes
Online Backup
RAID:
o Redundant Array of Independent Disks (RAID) is a technology
used to improve the reliability, performance, or size of disk-
based storage systems.
o RAID is used to create virtual disk volumes over an array of
disk storage devices and can be configured so that the failure
of any individual disk drive in the array will not affect the
availability of data on the disk array.
o When the array is configured with RAID, a failure of a single
disk drive will have no effect on the disk array’s availability to
the server to which it is connected.
16. CONTD…
Replication: Replication is an activity where data that is written
to a storage system is also copied over a network to another
storage system
Synchronous replication: In this method writing data to a local
and to a remote storage system are performed as a single
operation, guaranteeing that data on the remote storage system
is identical to data on the local storage system.
Asynchronous replication: Writing data to the remote storage
system is not kept in sync with updates on the local storage
system. Instead, there may be a time lag, and you have no
guarantee that data on the remote system is identical to that on
the local storage system.
Server Clusters: In a cluster two or more servers appear as a
single server resource. Clusters are best suited for applications
that require a high degree of availability and a very small RTO
(recovery time objective)
if one of the servers in the cluster fails, the other server (or
servers) in the cluster will continue to run the application
17. CONTD…
Offline Backup
Data is copied into an external medium like CD or
external hard disk periodically and kept in a safe
place on site
Offsite Backup
To provide disaster recovery protection, backup
media must be stored off-site in a secure location