wang s formal principles of software engineering

Ngày tải lên: 21/02/2014, 09:20

... • Documents • Procedures used to setup and operate the software system (Program is a subset of software, or Software is a superset of programs) Software applications • • • • System Software: a ... machines • A discipline whose aim is the production of quality software, software that is delivered on time, within budget, and that satisfies its requirements Software Consist of: • Programs • ... Attributes of Good Software • Maintainability Software must evolve to meet changing needs • Dependability Software must be trustworthy • Efficiency Software should not make wasteful use of • system resources...

Ngày tải lên: 22/03/2014, 18:20

... resources, etc • Because of software s growing importance, its development must be managed even more carefully than other areas of large projects • Often, in the past, software was randomly assembled ... FUNDAMENTALS OF SOFTWARE ENGINEERING PROJECT MANAGEMENT Their own roles in a software development project Management techniques for improved software development Behind the scenes issues dealt with by software ... Software also plays an ever-increasing role in business management: it controls equipment maintenance management, logistics, resource allocations, business processes, financial transactions, accounting,...

Ngày tải lên: 29/03/2014, 23:20

... symmetry and the tendency to form crystals 1.7 Distribution of relative molecular mass Problems Notes Structure of polymeric solids 2.1 Introduction 2.2 Structure of the crystal 2.3 Crystal shape ... Designing for stiffness 8.4.1 PIastics 8.4.2 Fibre composites 8.4.3 Rubbers 8.5 Designing for strength 8.6 Case histories 8.6.1 Optical memory devices (compact discs) 8.6.2 Motorcycle drive sprocket ... rubbers in~ Contents x Problems Notes Viscoelasticity 4.1 Introduction 4.2 The nature of viscoelasticity 4.2.1 Creep 4.2.2 Stress relaxation 4.2.3 Dynamic properties 4.3 Theory of linear viscoelasticity...

Ngày tải lên: 02/04/2014, 16:29

... in laser cavities The analysis of the resonant modes is fundamental to the understanding of lasers Modes of solid state and gas lasers are solutions of Eqs (1.28a) and (1.28b), known as Gaussian ... Spontaneous emission noise in laser amplifiers 6.8.3 Spontaneous emission in laser oscillators 6.8.4 The line width of laser oscillation 6.8.5 Relative intensity noise of laser oscillators References Semiconductor ... system consisting of lenses, prisms or mirrors, the rigorous analysis of Maxwell s vector wave equations becomes very complex and tedious: there are too many modes in such a large space It is...

Ngày tải lên: 24/04/2014, 16:51

... ứng yêu cầu Software Consist of: • Programs • Documents • Procedures used to setup and operate the software system (Program is a subset of software, or Software is a superset of programs) Phần mềm ... Attributes of Good Software • Maintainability Software must evolve to meet changing needs • Dependability Software must be trustworthy • Efficiency Software should not make wasteful use of system resources ... events as they occur (weather forecasting) • Embedded Software: placed in ROM of the product and control various functions of product • Business Software: designed to process business applications...

Ngày tải lên: 12/05/2014, 11:09

... correct answer to the question, this is it! It is interesting to compare this discussion of dark side matters with a comparable discussion of software project failures Dark side discussions tend ... IMPACT OF SUBVERSIVE STAKEHOLDERS ON SOFTWARE PROJECTS “Subversive stakeholders” are software project stakeholders who want the project to fail This section of our book discusses our survey which ... of some event as a “subversion” comes from patterns of behavior over time Such subversion rarely rises to the level of project progress reports Case-Specific Discoveries Sometimes subversion is...

Ngày tải lên: 31/05/2014, 01:41

Ngày tải lên: 05/06/2014, 11:42

... delivery of genes and drugs to cells and tissues are discussed Various important engineered tissues, including breast-tissue engineering, tissues of the cardiovascular systems, such as myocardium, ... as myocardium, blood vessels, and heart valves, endocrine organs, such as the pancreas and the thymus, are discussed, as are tissues of the gastrointestinal system, such as liver and the alimentary ... favorable host tissue response, a response characterized by restoration of tissue structure and function OASIS is comprised of porcine-derived acellular small intestine submucosa The OASIS Wound...

Ngày tải lên: 29/06/2014, 09:21

... exocrine tissues The endocrine pancreas occupies less than 5% of the pancreatic tissue mass and is composed of cell clusters called the islets of Langerhans The islets of Langerhans contain insulin-producing ... beta-cells have unique characteristics specific to the production of insulin, such as specific peptidases, glucose-sensing systems, and secretory granules that can release insulin promptly by exocytosis ... chapter is therefore organized as follows We first describe the types of cells that have been used or are of potential use in engineering a pancreatic substitute We then discuss issues of construct...

Ngày tải lên: 29/06/2014, 09:21

... mechanics; this includes a study of one-dimensional and plane stress and strain leading to stresses and deflection of beams and shafts Also included in this chapter are the basic elements of fluid ... the proposal of basic ‘laws’ or axioms Statics is a special case where there is no motion The combined study of dynamics and statics forms the science of mechanics 1.2 Co-ordinate systems Initially ... terms, iK -x We have seen in section 3.4 that for a simple mass-and-spring system (3.20) Now a second integral involves a substitution that is, some guesswork - so let us guess that x = A sin of, ...

Ngày tải lên: 13/02/2014, 23:20

... Schaum s Easy Outline: Trigonometry Schaum s Easy Outline: Business Statistics Schaum s Easy Outline: Principles of Accounting Schaum s Easy Outline: Applied Physics Schaum s Easy Outline: Biology Schaum s ... SCHAUM S Easy OUTLINES PRINCIPLES OF ECONOMICS Other Books in Schaum s Easy Outlines Series Include: Schaum s Easy Outline: Calculus Schaum s Easy Outline: College Algebra Schaum s Easy Outline: ... Companies, Inc Click Here for Terms of Use 2 PRINCIPLES OF ECONOMICS ics studies the economic behavior of individual decision makers such as consumers, resource owners, and business firms The discipline...

Ngày tải lên: 13/12/2013, 11:34

... the systems at ICL and Telenor Telecom Software has descriptions of technical work processes in them, and at sd&m and ICL Finland, we nd lists of employees skills, as well as lists of customers, ... methods formal specication and verication of software Cleanroom methodologies a method for removing defects from software Process models descriptions of appropriate processes in software engineering ... contents, as well as several roles for process analysts, responsible for analysing information from processes such as the estimation process, project management process and the testing process Although...

Ngày tải lên: 16/01/2014, 16:33

... calibration of the throttle position sensor is: kpot = Vsensor = VB = VB R0 + R = VB Rsensor R0 R + Rsensor Rsensor R0 θ + Rsensor kpot × Rsensor (θ in degrees) The calibration curve for the sensor is shown ... does not use the entire range of the sensor FOCUS ON MEASUREMENTS Resistance Strain Gauges Another common application of the resistance concept to engineering measurements is the resistance strain ... is: The voltage across each resistor in a series circuit is directly proportional to the ratio of its resistance to the total series resistance of the circuit An instructive exercise consists...

Ngày tải lên: 19/01/2014, 19:20

... Solid-state physics System theory Computer systems Optics Control systems Communication systems Instrumentation systems Figure 1.1 Electrical engineering disciplines EXAMPLE 1.1 Electrical Systems ... (five possible answers are given); the afternoon session consists of 70 questions The exam is prepared by the State Board of Engineers for each state One of the aims of this book is to assist you ... control systems The heart of such control systems is a type of computer called a microprocessor The microprocessor receives signals from devices (called sensors) that measure relevant variables—such...

Ngày tải lên: 19/01/2014, 19:20

... calibration of the throttle position sensor is: kpot = Vsensor = VB = VB R0 + R = VB Rsensor R0 R + Rsensor Rsensor R0 θ + Rsensor kpot × Rsensor (θ in degrees) The calibration curve for the sensor is shown ... does not use the entire range of the sensor FOCUS ON MEASUREMENTS Resistance Strain Gauges Another common application of the resistance concept to engineering measurements is the resistance strain ... is: The voltage across each resistor in a series circuit is directly proportional to the ratio of its resistance to the total series resistance of the circuit An instructive exercise consists...

Ngày tải lên: 19/01/2014, 20:20

... Solid-state physics System theory Computer systems Optics Control systems Communication systems Instrumentation systems Figure 1.1 Electrical engineering disciplines EXAMPLE 1.1 Electrical Systems ... (five possible answers are given); the afternoon session consists of 70 questions The exam is prepared by the State Board of Engineers for each state One of the aims of this book is to assist you ... control systems The heart of such control systems is a type of computer called a microprocessor The microprocessor receives signals from devices (called sensors) that measure relevant variables—such...

Ngày tải lên: 19/01/2014, 20:20