jgs CSC 307 Introduction to Software Engineering Lecture 16: Cost Estimation & Final Review Dr. Javier Gonzalez-Sanchez [email protected] www.javiergs.com Building 14 -227 Office Hours: By appointment
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 5 Stories and Tasks … move the pacman … show the pacman … move a ghost … show a ghost … show power pills stories tasks (new) … show a maze
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 8 public class A extends B { C c1, c2; public A() { c1 = new C(); } public void method() { D d = new D(); d.working(); } } Public class X { public void m() { B var = new A(); double x – Math.sqrt(5); } } public class B implements E { public B() { C c1 = new C(); } public void method() { B b = new B(); b.sleep(); } } public class Y { A [] a = new A[5]; } Lab
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 11 § Students and Staff members can request the Library to notify him/her when a Book becomes available. § Also, they can reserve the book. Before reserving a Book for someone the Library check, for students, with the Registrar, if the Student is currently enrolled, and for employees, with Human Resources if the employee has an active contract. Case 4
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 21 § The constructive cost model was developed by Barry Boehm (the Spiral model guy) in the late 1970 and published in Software Engineering Economics. § It is a model for estimating effort, cost, and schedule for software projects. § It drew on a study of 63 projects at TRW Aerospace. § The study examined projects ranging in size from 2,000 to 100,000 lines of code and diverse programming languages. § These projects were based on the waterfall model of software development (prevalent in 1981). COCOMO
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 24 1. Software Size (Lines of Code) 2. Software Scale Drivers: sources of exponential effort variation 3. Software Cost Drivers: sources of linear effort variation. They group in 4 categories: product, platform, personnel and project Factor are rated between very low and very high per rating guidelines Factors of development cost
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 26 Scale Drivers Rating Scale Factors (Wi) Very Low Low Nominal High Very High Extra High Precedentedness (PREC) thoroughly unprecedented largely unprecedented somewhat unprecedented generally familiar largely familiar throughly familiar Development Flexibility (FLEX) rigorous occasional relaxation some relaxation general conformity some conformity general goals Architecture/Risk Resolution (RESL)* little (20%) some (40%) often (60%) generally (75%) mostly (90%) full (100%) Team Cohesion (TEAM) very difficult interactions some difficult interactions basically cooperative interactions largely cooperative highly cooperative seamless interactions Process Maturity (PMAT) Weighted average of “Yes” answers to CMM Maturity Questionnaire * % significant module interfaces specified, % significant risks eliminated
jgs Javier Gonzalez-Sanchez | CSC 308 | Winter 2023 | 34 Office Hours Tuesday and Thursday 3 - 5 pm But an appointment required Sent me an email – [email protected]
jgs CSC 307 Introduction to Software Engineering Lab 16: Final Project Dr. Javier Gonzalez-Sanchez [email protected] www.javiergs.com Building 14 -227 Office Hours: By appointment
jgs CSC 307 Introduction to Software Engineering Javier Gonzalez-Sanchez, Ph.D. [email protected] Summer 2023 Copyright. These slides can only be used as study material for the class CSC308 at Cal Poly. They cannot be distributed or used for another purpose.
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