【正文】 a particular task might be too demanding for the novice developer who happens to be the only one who is available at the required time. ? ActorStructure. Organizational barriers may make it difficult for people who need to municate to do so. Pc30 pe36 ? TechnologyStructure. (Pc24 pe29) Pc22 pe24 no machine available An example here might be where software for a control system has to be tested on an expensive hardware configuration, which is used by more than one team. There could be clashes over the use of this valuable resource if an appropriate process was not in place to allocate user in an orderly and rational manner. ? TechnologyTask. ? Pc24 pe29 mercial package available Pc29 pe35 estimate cost while using mercial package The example immediately above concerning the shared use of a testing facility could also apply here to the task of testing a software ponent in the shared technological environment. ? points on Pc21 pe25 amp。2020, that is 163。 iii. amend existing entries iv. delete entries v. allow enquirers to list on line the details for a particular member of staff vi. produce a plete listing of the telephone directory entries in alphabetical order a) Use this scenario to produce an estimated Mark II FP count. List all the assumptions you will need to make. b) Another requirement could be to produce the listing in (v) in departmental order. In your view should this increase FP count and if so by how much? a) 涉及的 input/output 數(shù)據(jù)類型 transaction inputs outputs entities accessed set up new entry ( staff reference to fax number 9 error message 1 directory entry 1 amend (display) staff reference 1 surname to fax number or error message 10 directory entry 1 amend (update) surname to fax number 9 error message 1 directory entry 1 delete entry staff reference 1 surname, forenames (as check) error message 3 directory entry 1 enquiry staff reference (or surname, forenames) 3 (1) full details + error message 10 directory entry 1 listing trigger 1 full details 9 directory entry 1 totals 24 x = 35 x = 7x = grand total Discussion： 關(guān)于相同功能，工作量是否應(yīng)當(dāng)重復(fù)計(jì)算？ （不同原因） b) It can argued that the data presented in the two reports are the same, so that they are logically the same and so should be counted only once. Most development environment have easy to use features for sorting data and so the actual amount of work needed to produce the second report would probably be negligible. However, if you have every tried to look up details in an unsorted list, the fact that it is sorted can provide considerable value. There is therefore a debate among FP practitioners about whether FPs should reflect the value of the system to the user or the amount of work that is needed to develop it. This is particularly an issue in relation to the question of reusable ponents. 9 6. Given the project data below: project inputs outputs entity accesses system users programming language developer days 1 210 420 40 10 x 30 2 469 1406 125 20 x 85 3 513 1283 76 18 y 108 4 660 2310 88 200 y 161 5 183 367 35 10 z 22 6 244 975 65 25 z 42 7 1600 3200 237 25 y 308 8 582 874 111 5 z 62 X 180 350 40 20 y Y 484 1190 69 35 y a) What items are size drivers? inputs, outputs, entity accesses (system users for certain aspects) b) What items are productivity drivers? Programming language c) What are the productivity rates for programming languages x, y and z? x 10 FPs a day [*（ 210+469） +*（ 40+125） +*（ 420+1406） ]/(30+85)= y 7 FPs a day z 12 FPs a day d) What would be the estimated effort for projects X and Y using a Mark II function point count? project inputs outputs entity accesses system users programming language developer days FPs 1 210 420 40 10 x 30 2 469 1406 125 20 x 85 3 513 1283 76 18 y 108 4 660 2310 88 200 y 161 7 1600 3200 237 25 y 308 5 183 367 35 10 z 22 6 244 975 65 25 z 42 8 582 874 111 5 z 62 X 180 350 40 20 y Y 484 1190 69 35 y Project X : 262/7 . 37 days 10 Project Y 705/7 . 101 days e) What would be the estimated effort for X and Y using an approximate analogy approach? Project X Project 5 22 days, (language is not considered) Project Y Project 3 108 days. f) What would have been the best estimating method if the actual effort for X turns out to be 30 days and for Y turns out to be 120 days? Can you suggest why the results are as they are and how they might be improved. If we use a measurement based on the percentage error, calculated as absolute (actualestimate)/actual we get the following: Project X Project Y FP method 23% 16% analogy 27%(project5: Z) 10% (project3: Y) This illustrates that no one estimating method can be assumed to be the most accurate in all cases. The analogy estimate for Project X might have been improved by adjusting for the fact that Project X is to be written in programming language y while Project 5 was written in programming language z 六、 1. 題目： Activity Depends on Duration (days) A 5 B A 7 C B 6 D A 5 E D 10 F B 15 G B 8 H G 8 I C 4 J G 4 K E,F 5 L I,H 3 (a) Create a PERT activity work using the following details: refer to figure 616 (b) Calculate the earliest and latest start and end dates and the float associated with each activity. From this identify the critical path. 11 開 始A 5005505B55771 21 20D 551 21 271 01 7E 1 01 01 72 02 771 7C 61 21 91 82 51 3 7G 81 21 32 02 19 1F 1 51 21 21 5 02 72 7I 41 82 52 22 91 1 7H 82 02 12 82 99 1J 42 02 82 43 21 2 8K 52 72 73 23 25 0L 32 82 93