This standard provides a process for creating a software project life cycle process (SPLCP). It is primarily directed at the process architect for a given software project. It is the function of the process architect to develop the SPLCP. This methodology begins with the selection of an appropriate software project life cycle model (SPLCM)for use on the specific project. It continues through the definition of the software project life cycle (SPLC),using the selected SPLCM, the activities… read more provided in Annex A, and the portion of the software life cycle that is relevant to the project. The methodology concludes with the augmentation of the software life cycle with organizational process assets (OPAs) to create the SPLCP. The activities that are provided in Annex A cover the entire life cycle of a software system, from concept exploration through the eventual retirement of the software system. This standard does not address nonsoftware activities, such as contracting, purchasing, or hardware development. It also does not mandate the use of a specific SPLCM, nor does it provide a selection of, or a tutorial on, SPLCMs. This standard presumes that the process architect is already familiar with a variety of SPLCMs, with the criteria for choosing among them and with the criteria for determining the attributes and constraints of the desired end system and the development environment that affects this selection. Finally, this standard does not prescribe how to perform the software activities in Annex A. read less

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定价： 178元 / 折扣价： 152 元

This standard defines standard practices for synthesizing binary digital electronic circuits from VHDL source code. It includes the following: a) The hardware interpretation of values belonging to the BIT and BOOLEAN types deÞned by IEEE Std 1076-1993 and to the STD_ULOGIC type defined by IEEE Std 1164-1993. b) A function (STD_MATCH) that provides "don't care" or "wild card" testing of values based on the STD_ULOGIC type. c) Standard functions for representing sensitivity to the edge of a… read more signal. d) Two packages that deÞne vector types for representing signed and unsigned arithmetic values, and that define arithmetic, shift, and type conversion operations on those types. This standard is designed for use with IEEE Std 1076-1993. Modifications that may be made to the packages for use with the previous edition, IEEE Std 1076-1987, are described in 7.2. read less

定价： 151元 / 折扣价： 129 元

The standard describes a standard syntax and semantics for VHDL RTL synthesis. It defines the subset of IEEE 1076 (VHDL) that is suitable for RTL synthesis and defines the semantics of that subset for the synthesis domain. The intent of this revision is to include a maximum subset of VHDL that can be used to describe synthesizable RTL logic. This includes considering new features introduced by IEEE Std 1076-1993, IEEE Std 1076-2002, new semantics based on algorithmic styles rather than template-… read more driven, and a set of synthesis attributes that can be used to annotate an RTL description. read less

定价： 240元 / 折扣价： 204 元

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The Subsystem Bus of the IEC 821 BUS (IEC 821-1987 [2],1 henceforth referred to as the VSB) is a local subsystem extension bus. It allows a processor board to access additional memory and I/O over a local bus, removing traffic from the global bus and improving the total throughput of the system. The system has been conceived with the following objectives: 1) To improve the performance of multiprocessor systems by allowing the design of local subsystems. 2) To specify the electrical… read more characteristics required to design boards that will reliably transfer data over the VSB. 3) To specify the mechanical requirements to be compatible with VSB systems. 4) To specify protocols that precisely define the interaction between the VSB and devices interfaced to it. 5) To provide terminology and definitions that describe VSB protocols read less

定价： 150元 / 折扣价： 128 元

To correct printing errors causing dimensional relationships to be misunderstood.

定价： 141元 / 折扣价： 120 元

This generic standard may be applied in all fields of electronics where equipment and installations are required to conform to the 19" Equipment Practice based on IEEE 1101.1, IEC 297-3, and IEC 297-4.

定价： 143元 / 折扣价： 122 元

This standard establishes the design requirements for a military module, format E form factor. The requirements herein serve to specify the mechanical design of the module. This standard is designed for use in conjunction with other IEEE standards.

定价： 150元 / 折扣价： 128 元

This document provides recommendations for installation design and procedures for installation, maintenance, and testing of vented nickel-cadmium batteries (including partially recombinant types) used for standby operation in stationary applications. This recommended practice also provides guidance for determining when these batteries should be replaced. Separate recommendations are provided for renewable energy systems (e.g., wind turbines and photovoltaic systems), which may provide only partial or intermittent charging. Sizing, qualification, and other battery types, including sealed nickel-cadmium, are also beyond the scope of this document. This recommended practice does not include any other component of the dc system, nor does it include inspection and testing of the overall dc system. Preoperational and periodic dc system tests of chargers and other dc components may require that the battery be connected to the system. Details for these tests will depend on the requirements of the dc system and are beyond the scope of this document.

定价： 65元 / 折扣价： 56 元

Within the context of the ISO/IEEE 11073 family of standards for device communication, this guide describes the landscape of transport-independent applications and information profiles for personal telehealth devices. These profiles define data exchange, data representation, and terminology for communication between personal health devices and compute engines (e.g., health appliances, set top boxes, cell phones, and personal computers). The guide provides a definition of personal telehealth… read more devices as devices used for life activity, wellness monitoring, and/or health monitoring in domestic home, communal home, and/or mobile applications as well as professional medical usage. Use cases relevant to these scenarios and environments are also presented. read less

定价： 95元 / 折扣价： 81 元

This standard defines a nomenclature for communication of information from point-of-care medical devices. Primary emphasis is placed on acute care medical devices and patient vital signs information. The nomenclature also supports concepts in an object-oriented information model that is for medical device communication.

定价： 516元 / 折扣价： 439 元

This standard extends the base nomenclature provided in ISO/IEEE 11073-10101:20041 to support terminology for implantable cardiac devices. Devices within the scope of this nomenclature are implantable devices such as pacemakers, defibrillators, devices for cardiac resynchronization therapy, and implantable cardiac monitors. This nomenclature defines the discrete terms necessary to convey a clinically relevant summary of the information obtained during a device interrogation. The nomenclature extensions may be used in conjunction with other IEEE 11073 standard components (e.g., ISO/IEEE 11073-10201 [B2]2) or with other standards, such as Health Level Seven International (HL7).

定价： 175元 / 折扣价： 149 元

This standard extends the base nomenclature provided in ISO/IEEE 11073-10101:20206 to support terminology for implantable cardiac devices. Devices within the scope of this nomenclature are implantable devices such as pacemakers, defibrillators, devices for cardiac resynchronization therapy, and implantable cardiac monitors. This nomenclature defines the terms necessary to convey a clinically relevant summary of the information obtained during a device interrogation. The nomenclature extensions… read more may be used in conjunction with other IEEE 11073 standard components (e.g., ISO/IEEE 11073-10201 [B2]7) or with other standards, such as Health Level Seven International (HL7). read less

定价： 158元 / 折扣价： 135 元