Installation may be started only when event 4 has been achieved, that is, as soon as program test has been completed. (a) Two team members overwriting each others work (b) Accidental deletion of work product (c) Unauthorized modications to a work product 10 OBJECTIVES When you have completed this chapter you will be able to: distinguish between the different types of contract; outline the contents of a contract for goods and services; plan the evaluation of a proposal or product; administer a contract from its signing until the nal acceptance of project completion. The factors to be taken account of could include costs and human factors. This approach is associated with Rensis permissive and autocratic vs. democratic: Likert. Figure 4.6 illustrates how a sequential macro process can be imposed FIGURE 4.6 A macro process containing three itera ve micro processes 94 So ware Project Management on a number of iterative sub-processes. They often require the practice of particular personal skills (the word technique is derived from the Greek for skilful) software design is a good example. If you have access to project planning software, use it to produce an activity plan for Amandas project and include the staff resource requirements for each activity. The detailed design of these units is carried out separately. We need to know that we can fund this development expenditure either from the companys own resources or by borrowing. EXERCISE 4.2 At IOE, Amanda has identied possible user resistance as a risk to the annual maintenance contracts project. The developer would, as part of this, assess the products that would be affected by the change. The levels of staff who are involved with each of the groups of project management processes in Table A.1 are indicated in Figure A.2. This is increasingly so as organizations rely more on their computer systems and software is used in more safety-critical applications, for example to control aircraft. In this section we are not addressing general concerns relating to the safety of ICT equipment of which any organization using such equipment would need to be aware. It should be sufcient for members of the Project Board to receive regular reports from the Project Manager. Introduction to Software Project Management 1.1 Introduction 1 1.2 Why is Software Project Management Important? However, the Step Wise approach is not necessarily at odds with PRINCE2 as PRINCE2 does emphasize the iterative nature of risk analysis. An objective-driven project will often have come rst which will have dened the general software solution that is to be implemented. Where possible, we want to base any advice on the ndings of writers on organizational behaviour (OB). Net present value The calculation of net present value is a project evaluation technique that takes into account the protability of a project and the timing of the cash ows that are produced. When a project is actually executed, the critical path may change as the actual durations of activities will vary from the original estimates and staff allocations may be adjusted to reect this. If the contract species a xed charge plus the actual cost of materials and equipment, then the customer in this case would be better off. Limitations of XP The successful use of XP is based on certain conditions. Reasons for project termination Here are a few reasons why a project gets terminated before the natural closing date: Project is completed successfully and handed over to the customer. In this case, the current EV should have 220 So ware Project Management FIGURE 9.13 An earned value tracking chart been achieved in the early part of month 9 and as the time now is the end of month 11, the TV is about 1.75 months. The creation of an early working model of Checking intermediate stages It is tempting to push forward quickly with a system may still be the development of any engineered object until a working model, however useful, as the creation of prototypes shows. to write the software) or the granting of a licence (i.e. 12.2). It may at times be required to rollback to a previous baseline if a change is not justied or is improper. We could decide that the damage inicted by some risks would be less than the costs of action that might reduce the probability of a risk happening. This could be purely out of self-interest. To aid comparison with the original, the nodes have not been renumbered, although we would normally do so. The different types of metrics that are collected include the cost, schedule, and quality metrics. This can be debated, but the main point is that consistency is essential. During the feasibility study and project start-up, the main purpose of planning will be to estimate timescales and the risks of not achieving target completion dates or keeping within budget. The latest start date for the project start is the earliest of the latest start dates for activities A, B and F. This is week zero. (c) ii. What would be the likely impact of this decision on your project? These test cases can then be accumulated so that they can be used for regression testing to ensure that later developments do not insert errors into existing working code. Thus Dijkstra and others suggested that the only way to reassure ourselves about the correctness of software was by examining the code. ISO/IEC TR 9126-3:2003 Software engineering: product quality Part 3 Internal metrics. The manager may have to request the use of a developer who belongs to a pool of resources controlled at programme level. We create an outline plan for the whole Appendix A, takes this iterative approach to project and a detailed one for the rst stage. An interesting aspect of Jones rules is that these rules give an insight into many aspects of a project (such as the rate of requirements creep) for which no formal methodologies exist as yet. EXERCISE 13.4 In what cases might the entry conditions for one activity be different from the exit conditions for another activity that immediately precedes it? Characteristic Usability Sub-characteristics Understandability Learnability Operability Attractiveness Usability compliance Note how learnability is distinguished from operability. This investigates the business requirements. This is done by monitoring the completion of tasks (or activity starts and milestone achievements in the case of the other crediting techniques). Modules A and B can only be unit-tested together as their functionality is closely associated. In the next two chapters we look at these aspects of project planning before we consider how we might publish a schedule for the project. 11. This value could be used to prioritize the importance of risks, although more sophisticated risk calculations are not possible. The International FP User Group (IFPUG) has now promulgated rules on how this is assessed. You can write to me at [emailprotected] or [emailprotected] Rajib Mall Publishers Note Remember to write to us. Time and materials contracts With this type of contract, the customer is charged at a xed rate per unit of effort, for example per staff-hour. There can even be direct benets to the particular project since some costs may be allocated to the training budget. While a projects IRR might indicate a protable project, future earnings from a relatively risky project might be far less reliable than earnings from, say, investing with a bank. Data groups can be moved about in four ways: entries (E), which are effected by subprocesses that move the data group into the software component in question from a user outside its boundary this could be from another layer or another separate software component in the same layer via peer-to-peer communication; exits (X), which are effected by subprocesses that move the data group from the software component to a user outside its boundary; reads (R), which are data movements that move data groups from persistent storage (such as a database) into the software component; writes (W), which are data movements that transfer data groups from the software component into persistent storage. It is argued that approaches like the one we have described above focus on structure for example, who reports to whom at the expense of process for example, the basis on which decisions are made. The project termination review summary report is not only benecial to the terminated project, but it can also benet of other teams and therefore should be disseminated across the organization. In the black-box approach, test cases are designed using only the functional specication of the software. A detailed plan for the project, however, must also include a schedule indicating the start and completion times for each activity. It should be noted that the objectives listed above do not explicitly mention such things as putting into place ongoing arrangements to deal with hardware and software maintenance, security arrangements and so on. Software Engineering Management was The possibility of changes in requirements is reduced because of the shorter published by Addisontime span between the design of a component and its delivery. Statistics are maintained so that the effectiveness of the inspection process can be monitored. 7.2 Identifying risks Once again the answer below can only be indicative there is no one correct answer. The cost of a contingency measure will only be incurred if the risk actually materializes. Identify activity risks 1.2 Establish project authority 1.5 Establish methods of communication with all parties 2.3 Identify project team organization Project objectives Constraints Methods Resources to be used Risks to the project Management of the project Chapter 4 4.1 Classification of systems (a) A payroll system is a data-oriented or information system that is application specic. Monte Carlo simulation is expected to give a more realistic result than manual analysis of a few cases, especially because manual analysis implicitly gives equal weights to all scenarios. The statistical representation of six sigma describes quantitatively how a process is performing. What would be the Euclidean distance between this project and the target new project being considered above? If, over time, staff become aware that the targets set are unattainable and that projects routinely miss targets, motivation is reduced. 9. Some quality-enhancing techniques concentrate on testing the products of the development process, while others try to evaluate the quality of the development processes used. Let us now try to understand the types of projects for which the chief programmer team structure would be appropriate. This book employs an integrated approach to test management, techniques and process requirement activities. Problems can occur when there is an imbalance between the role types of people in a group. Managing People in So ware Environments 261 Some ethical responsibilities are shared by all members of the community, regardless of their position for example, to alert the emergency services when a serious motor accident has taken place. Verication and Validation: As in Example 1.2 8. It is a course that deals with the concepts related to softwares. Also new test cases would have to be added for the altered code. 3.1 Introduction to Step Wise Project Planning This chapter describes a framework of basic steps in project planning upon which the following chapters build. Identify the main stakeholders for this project. Dividing the value rating by the cost rating generates a ratio which indicates the relative value for money of each increment. This is where the additional effort required to create automated test scripts can pay off. Think carefully about how to handle the costs of Amanda as project manager and the recovered overheads and justify your decisions about how you treat them. Given this information, which system appears to give better value for money? At the end of week 3 she decides to keep to the existing targets. 55 Some of these issues will be discussed in Chapter 12 on working in teams. PRINCE2 is in the public domain, and offers non-proprietary best practice guidance on project management. Long activities make a project difcult to control. Some of these human considerations affect staff as individuals. 10.6 Acceptance When the work has been completed, the customer needs to arrange acceptance testing. The RAD approach does not preclude the use of some elements of structured methods such as the drafting of logical data structure diagrams but also adopts tactics such as joint application development (JAD) workshops. This is seldom the case with software projects. To a large extent it will often consist of nding out what the current system does, as it may be assumed that in general the new system is to provide the same functions as the old. Chapter 4 discusses life cycles in more detail. However, there are advantages in allowing these tasks. The rst description of this approach is said to be that of H. D. Bennington in Production of Large Computer Programs in 1956. One concern of conguration management (as described in Chapter 9) is assessing whether changes made to one component will have knock-on effects on other components. Unless good quality documents are produced by each team, teams working subsequently on the project will nd it hard to understand the work already completed. As an alternative, the savings made by reuse could be measured and a prot-sharing scheme could be operated. MG Limaye Software Testing Principles Techniques and Tools Tata McGraw Hill 2011 Mg limaye software testing principles techniques and School University of North Carolina, Greensboro Course Title CSC MISC Type Notes Uploaded By trikysaana Pages 191 This preview shows page 180 - 183 out of 191 pages. It does not, however, tell the project manager what has been produced or whether tasks are on schedule.
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