1 test sites, the information system life cycle
[analysis] test method
test method 1: familiar with the content focus of each stage to be completed, which select the corresponding stage (planning, analysis, design, implementation, operation and maintenance); enable candidates to select the corresponding stage.
Test method 2: basic distinction belongs to the software development process information system life cycle implementation phase. Allow candidates to determine the correctness of the statement.
[Analysis] Points
1, system planning stage: task is to organize environmental conditions, objectives and the current system of preliminary investigation, according to the organization's objectives and development strategy, determining the development of strategic information systems, research necessity and possibility of the construction of the new system ; writing system design task book;
2, the system analysis phase: determine the basic objectives and logic functions of the new system requirements, namely that the logical model of the new system, the system determines "what to do."
3, the system design phase: According to the functional requirements of the system specification, considering the actual conditions, the specific design and implementation of technical solutions logical model, physical model that is designed to the new system, the question to be answered is "how to do."
4, system implementation phase: the design of the system implemented in stages, including the purchase of computer equipment, installation and commissioning, writing and debugging programs, staff training, data file conversion, commissioning and conversion.
5, system operation and maintenance phases: system put into operation, it requires frequent maintenance and evaluation, recording operation.
Remarks [coaching]
1, memorizing every stage of the main tasks and deliverables.
2, compulsory test sites, understanding each stage, the topic with examples relatively high degree of flexibility; (Exams 15 occurrences)
[] consolidation exercise
1, a FMCG chain technology company commissioned a development and deployment of e-commerce platform, a company the system design assignment determined the scope, objectives and logic functions to determine the basic requirements of the system, put forward a logical model of the new system, which belongs to the information system life cycle () session.
A. B. System Planning Analysis System C. D. system design system implementation
2, a large plantation companies this year to build a public cloud built on enterprise information systems bidding, project manager for software procurement now under way, according to the information system life cycle stage 5 Divisions, currently in () phase.
Planning System A. System B. Analysis System C. D. embodiment system
test center 2, the information system Planning
[Analysis] test method
test method 1: familiar with the principles of information systems planning, planning process, planning methods, planning tools. Allow candidates to determine the correctness of the statement.
Test method 2: master key enterprise information planning BSP-step process; the characteristics of large-scale information systems, to enable candidates to judge the correctness of the claim.
[Analysis] points
Features 1, large-scale information systems: large-scale, cross-regional, complex network structure, and more types of business, the amount of data users and more.
2, information systems planning process: analysis of enterprise information flow -à develop enterprise information strategy -à information systems planning programming and overall architectural design.
3, BSP enterprise system planning methods: top-down planning system; and to achieve the division bottom-up step by step;
4, BSP process: determine the project -à preparation -à defining enterprise-defined data type identification process -à - à analysis of existing systems -à determine the management system requirements -à made judgments and conclusions -à definition information systems architecture -à prioritize -à recommendations and development plans;
5, information systems planning tools: process / tissue (P / O) matrix; the CU matrix; property / (R / D) matrix; function method or process method IPO
[Remarks] coaching
1, memorize and process BSP matrix tools
3, test sites emerged in recent years, 2018 2 months exam questions; the second half of 2018 exam question 2;
[] the consolidation exercise
after business system planning (business system, bsp) way to contain certain steps to complete the preparatory work of four steps need to be followed :() .
A. Definitions The enterprise process, the definition of identification data class, determining the management system requirements, the system analyzes the existing
B. identifying data class definitions, definitions business process management system requirements to determine, analyze the existing system
C. Definitions enterprise process, identifying the class definition data, analysis of existing systems, to determine the requirements of the management system
D. Identification data class definitions, the definition of business processes, analyze existing systems, determine system requirements for the management of
information systems planning tool () can reflect the relationship between data types and business processes.
A. Process / tissue (P / D) matrix
B.SWOT matrix
C. Resource / data (R / D) matrix
D. Create / User (C / U) matrix
3 test sites, information systems development methods
[Analysis test method]
test method 1: Comparison of structured methodology, object-oriented methods, features prototyping and service-oriented approach, deficiencies and limitations, application scenarios, allow candidates to choose the right development approach;
test method 2: focus on mastering the current mainstream Object-oriented development method;
[Analysis] Points
1, structured approach: top-down, stepwise refinement and modular design; data processing adapted to the problem, but not suited to larger, more complex system development; long development cycle, it is difficult to adapt to changes in demand, with little regard for the data structure;
2, prototyping: cycle time, cost and risk reduction, in order to develop user-centric system; users involved in the system development process; shortcomings: the development of high environmental requirements, the level of management to high to
3, object-oriented approach: more reusable, easy to maintain system, shorten the development cycle
4, the surface-based service methods: mutual communication between various application systems within an organization, the organization and interoperability direct impact organization and mastery of information processing speed.
[Coaching] pro forma
memorize the characteristics of four kinds of development methods, application scenarios, inadequate.
[] Consolidation exercise
1, () method is designed to meet the information system needs and respond quickly to changes in the environment, communicate with each other between the requirements of various application systems within an organization, organization, improve the system reusability and sharing of information resources interoperability between systems.
Object-oriented A.
B. Process oriented
C. member based
D. oriented service
2, () A Method of Obtaining Early Feedback ON by requirements of PROVIDING A Working Model Building The expected Actually IT Product before.
A.PrototypesB.Object orientedC.Structured methodD.Iterative method
test sites 4, software development model
[analysis] test method
Test method 1: technical characteristics of each model and compare scenarios, choose the appropriate model (waterfall model, spiral model, iterative model, V model, prototyping, agile development model)
test method 2: various technical characteristics of the model, let candidates judge the correctness of the claim.
[Analysis] Points
1, the waterfall model: the output of the previous stage as input to a later stage; apply to pre-clear demand, demand infrequently changing scene.
2. Spiral Model: emphasis on risk analysis, especially for large and complex, high-risk systems.
3, iterative model: RUP four phases - initial - Refinement - construction - transfer; core work into - Business Modeling - requirements capture - Analysis and Design - implementation - testing - deployment.
4, V model: The main idea is to develop and test equally important development activities on behalf of the left side, the right side represents the test activities;
5, prototype models: the user's needs are dynamic response; suitable for the needs of the early system development is very clear
6, agile model: people-centered, iterative, incremental development methodology. Face to face communication, frequent delivery of software version.
Remarks [coaching]
1, memorize the characteristics of each model and different scenarios.
2, compulsory test sites, understand the characteristics, the scope of application of
[the consolidation exercise]
features 1, () is not the v model.
A. reflects the development and testing as important as the idea of
B. test is the development life cycle stage
C. for each stage of development, there is a test level Correspondingly
D. apply to user needs is not clear or passive change case
2, a spiral model of software evolution process model, the prototype implementation of the iterative feature combined with sequential linear model such rapid development of incremental versions of the software becomes possible. Spiral model compared with other models, more emphasis on ().
A. Development Program
B. Risk analysis
C. Implementation Project
D. customer evaluation
