Software Process

LARGE SCALE SOFTWARE DEVELOPMENT 1. What ar the profound activities that atomic number 18 common to all packet processes? a. Specification formation what the system should do b. Design and implementation defining the organization of the system and implementing the system c. Validation checking that it does what the customer wants d. Evolution changing the system in reaction to changing customer needs. 2. List the 3 generic process models that are used in software engineering? ? Plan-driven model. Separate and distinct phases of specification and development. Specification, development and validation are interleaved. May be plan-driven or agile. ? The system is assembled from existing components. May be plan-driven or agile. 3. Why are iterations usually limited when the falls model is used? accommodating change after the process is underway. In principle, a phase has to be complete before moving onto the next phase. 4. What are the three benefits of incremental development, compared to the waterfall model? ? The join of analysis and inscriptionation that has to be redone is much less than is required with the waterfall model. Customers go off comment on demonstrations of the software and see how much has been implemented. ? Customers are able to use and gain value from the software previous than is possible with a waterfall process. 5. What are the development stages in reuse-based development? ? Component analysis ? Requirements allowance ? System design with reuse ? Development and integration. 6. What are the principal requirements engineering activities? ? Feasibility study Is it technically and financially feasible to build the system? Requirements elicitation and analysis What do the system stakeholders require or expect from the system? ? Requirements specification Defining the requirements in detail ? Requirements validation Checking the validity of the requirements 7. Why is it more and more irrelevant to distinguish between software development and evolution? Although there has been a demarcation between development and evolution (maintenance) this is increasingly irrelevant as fewer and fewer systems are completely new. . What are the advantages of using incremental development and delivery? 9. What are the 4 sectors in each loop in Boehms spiral model? Objective setting ? Specific objectives for the phase are identified. ? Risks are assessed and activities mark in place to reduce the key risks. ? A development model for the system is chosen which can be any of the generic models. ? The project is reviewed and the next phase of the spiral is planned. 10. What are the six fundamental best practices in the RUP? Plan increments based on customer priorities and deliver highest priority increments first. ? Explicitly document customer requirements and keep track of changes to these requirements. ? Organize the system architecture as a set of useful components. ? Use graphical UML models to present static and d ynamic views of the software. ? Ensure that the software meets organisational quality standards. Manage software changes using a change counseling system and configuration management tools.