software quality attributes and architecture trade offs

... indirectly. Quality in use is the combined effect of the quality attributes contained in all the selected quality models and quality in use is what the users behold of the software quality when the software ... The quality model consists of several quality attributes that are used as a checklist for determine software quality (ISO 9126-1). The quality model is dependent of the type of software and ... use. In ISO 9126:1 there are three approaches to software quality; internal quality (quality of code), external quality (quality of execution) and quality in use (to which extent the user needs...

Ngày tải lên: 20/12/2013, 19:15

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Ngày tải lên: 19/09/2013, 15:53

... ■ EXCEPTIONS, ATTRIBUTES, AND REFLECTION Attributes Literally, metadata means “data about data.” Attributes represent metadata for the program element to which it is applied. Attributes may ... Thursday, October 19, 2006 8:04 AM 276 CHAPTER 10 ■ EXCEPTIONS, ATTRIBUTES, AND REFLECTION Assembly and Module Attributes Attributes may be applied at the assembly or the module level. You’ll ... follows: testing Serialization Attributes Some .NET Framework features rely heavily on attributes. For example, serialization of types as XML is primarily supported through applying certain attributes to classes and fields....

Ngày tải lên: 05/10/2013, 07:20

... â2000, 2001 25 Signature Examples ã TCP 139 and Out of Band ã SYN and FIN flag set ã GET . cgi-bin . /etc/passwd –above general filter will pick up phf, php and aglimpse common exploit Very similar ... 1 IDIC SANS GIAC LevelTwo â2000, 2001 1 First Principles Continued Interoperability and Architecture Hello, and welcome to the second half of the First Principles section. In the previous hour, ... and data model. S S S M M One of the strengths of a standard like CIDF/CVE/IDWG is demonstrated by this slide. Consider the case of a merger between two companies with different networking and...

Ngày tải lên: 22/10/2013, 16:15

... adjudication) and expanded the earlier 1947 GATT. That Preamble refers to ‘raising standards of living, ensuring full employment and a large and steadily growing volume of real income and effective demand’, expanding ... sorrow to mankind, and to reaffirm faith in fundamental human rights, in the dignity and worth of the human person, in the equal rights of men and women and of nations large and small, and to establish ... facilitate the expansion and balanced growth of international trade, and to contribute thereby to the promotion and maintenance of high levels of employment and real income and to the development...

Ngày tải lên: 01/11/2013, 08:20

... I/O ã Devices and memory share an address space ã I/O looks just like memory read/write ã No special commands for I/O (No I/O instruction) ü Large selection of memory access commands available Đ ... spaces ã Need I/O or memory select lines ã Special commands for I/O ỹLimited set Interrupt Driven I/O Basic Operation Đ CPU issues read command Đ I/O module gets data from peripheral whilst CPU ... identifier Đ CPU commands contain identifier (address) Design Issues Đ How do you identify the module issuing the interrupt? Đ How do you deal with multiple interrupts? ã i.e. an interrupt handler being...

Ngày tải lên: 05/11/2013, 22:15

... 34 Activity 5.3: Identifying Attributes and Relationships Exercise 1: Identifying Business Object Attributes ( 20 minutes) ! Identify business object attributes 1. Participate in small ... note to the appropriate business object. 7. Extrapolate other attributes from the current list of business objects, services, and attributes that may not have been explicitly listed in the usage ... BLANK Activity 5.3: Identifying Attributes and Relationships 35 Exercise 2: Identifying Business Object Relationships (20 min) ! Identify candidate relationships 1. Participate...

Ngày tải lên: 10/12/2013, 16:16

... Advantages of Segmentation Đ Simplifies handling of growing data structures Đ Allows programs to be altered and recompiled independently, without re-linking and re-loading Đ Lends itself to sharing ... Monitor handles scheduling Segmentation Đ Paging is not (usually) visible to the programmer Đ Segmentation is visible to the programmer Đ Usually different segments allocated to program and data Đ ... Coalesce - Join adjacent holes into one large hole ã Compaction - From time to time go through memory and move all hole into one free block (c.f. disk de-fragmentation) Long Term Scheduling Đ Determines...

Ngày tải lên: 12/12/2013, 09:15

... instruction and different addresses ã e.g. VAX Number of Addresses (a) Đ # of address allowed in an instruction Đ Decide the categories of processor architecture Đ 3 addresses ã Operand 1, Operand 2, ... depending on decision William Stallings Computer Organization and Architecture Chapter 9 Instruction Sets: Characteristics and Functions Instruction Representation Đ In machine code each ... Increment (a++) ã Decrement (a ) ã Negate (-a) Standard What Standard? Đ Pentium (80x86), VAX are little-endian Đ IBM 370, Moterola 680x0 (Mac), and most RISC are big-endian Đ Internet is big-endian ã...

Ngày tải lên: 12/12/2013, 09:15

... ROpcode Instruction Memory OperandPointer to Operand Registers Stack Addressing Đ Operand is (implicitly) on top of stack Đ e.g. ã ADD Pop top two items from stack and add Immediate Addressing Diagram operandOpcode Instruction Size ... technique -Tells where the operand is. Immediate Addressing Đ Operand is part of instruction Đ Operand = address field Đ e.g. ADD 5 ã Add 5 to contents of accumulator ã 5 is operand Đ No memory reference ... William Stallings Computer Organization and Architecture Chapter 10 Instruction Sets: Addressing Modes and Formats Instruction Length Đ Affected by and affects: ã Memory size ã Memory organization ã...

Ngày tải lên: 12/12/2013, 09:15

... Used by CRAY-1 Pipelining Đ Fetch instruction Đ Decode instruction Đ Calculate operands (i.e. EAs) Đ Fetch operands Đ Execute instructions Đ Write result Đ Overlap these operations Data Flow (Execute) Đ ... most N bits of MBR transferred to MAR ã Control unit requests memory read ã Result (address of operand) moved to MBR Data Flow (Instruction Fetch) Đ Depends on CPU design Đ In general: Đ Fetch ã...

Ngày tải lên: 12/12/2013, 09:15

... agents for many small-scale traders and hunters in the area. Live animals and wildlife meat from these large-scale traders are supplied to local restaurants, traders, and restaurants in Buon Me ... an illegal trader and logger Address: Yang Tao commune, Lak District Source of income: Organiser of illegal logging and trade in timber, contract carpenter History: Timber trader and carpenter ... length and are planned in advance and mapped. During patrols, rangers collect information on signs of hunting, trapping and logging and the number of hunters and loggers encountered. Traps and...

Ngày tải lên: 20/12/2013, 23:15