This guide provides rationale and guidance for operating lead-acid batteries in remote hybrid power systems, taking into consideration system loads and the capacities of the system's renewable-energy generator(s), dispatchable generator(s), and battery(s). It also provides guidance for selecting an appropriate lead-acid battery technology for various system operating strategies.

定价： 66元 / 折扣价： 57 元

This standard draws on IEEE Std 12207(TM)-2008 to describe system and software reuse processes.1 It describes the relationship of reuse processes to system life cycle processes described in Clause 6 (System Life Cycle Processes) of IEEE Std 12207-2008 and software life cycle processes described in Clause 7 (Software Specific Processes) of IEEE Std 12207-2008. The standard defines processes and specifies requirements for the processes but does not specify particular techniques. The scope of the… read more specified processes is broader than that of IEEE Std 12207-2008 because reuse activities transcend the life cycle of any particular system. The specified processes are suitable on an organization-wide basis. read less

定价： 87元 / 折扣价： 74 元

The scope of the original standard is: This standard will describe a process for the management of risk during software development, operations and maintenance. It will be consistent with IEEE/EIA 12207. The revision is being performed jointly with ISO/IEC JTC1/SC7. The scope of the revision is to resolve the issues raised during the fast-track ballot of IEEE 1540 (DIS 16085).

定价： 45元 / 折扣价： 39 元

This guide is intended for use in establishing a methodology to evaluate expected long-term performance of infrequently operated switch contacts used within insulating liquid-immersed transformers. These switch contacts are typically found in de-energized tapchangers, dual voltage switches, reversing switches, on-load tapchangers, and step-voltage regulators, but the test might possibly be used to evaluate any contact that is used in insulating liquids with similar operating characteristics and within similar environments.

定价： 55元 / 折扣价： 47 元

This standard describes a set of useful activities, tasks and methods that can be selected and applied during the acquisition of software or software services. The standard can be applied to software that runs on any computer system regardless of the size, complexity, or criticality of the software. The software supply chain may include integration of commercial-off-the-shelf (COTS), custom, or open source software. Software services can include software development and sustainment, software… read more integration, and software verification and validation. Security is included as a quality attribute considered during the acquisition. However, specific requirements for acquisition of information assurance (security) services and cloud services are not included. read less

定价： 109元 / 折扣价： 93 元

This document provides an explanation of considerations involved in defining a process. This document gives requirements and recommendations for the description of processes by identifying elements and rules for their formulation. This document also describes the use of process views. This document explains how conformance to a process can be defined, when the process is described in accordance with this document. This document does not describe how processes are composed or otherwise… read more aggregated into larger frameworks or life cycle models. Nor does the document cover read less

定价： 63元 / 折扣价： 54 元

This document provides a recommended practice for the selection, application, and determination of the remaining life in molded-case circuit breakers used in industrial applications.

定价： 104元 / 折扣价： 89 元

This document specifies the purpose and content of all identified systems and software life‐cycle and service management information items (documentation). The information item contents are defined according to generic document types, as presented in Clause 7, and the specific purpose of the document, as presented in Clause 10. This document assumes an organization is performing life‐cycle processes, or delivering system or software engineering services, using either or both of the following:… read more ISO/IEC/IEEE 12207:2017 software life cycle processes; ISO/IEC/IEEE 15288:2015 system life cycle processes. ISO/IEC/IEEE 12207:2017 and ISO/IEC/IEEE 15288:2015 define an Information Management process, but do not "detail information items in terms of name, format, explicit content, and recording media" (ISO/IEC/IEEE 12207:2017, 1.4). These standards identify, recommend or require a number of documentation items. This document provides a mapping of processes from the above standards to a set of information items. It provides a consistent approach to meeting the information and documentation requirements of systems and software engineering and engineering service management. The generic document types defined in this document are used to identify the information necessary to support the processes required by ISO/IEC/IEEE 12207:2017 and ISO/IEC/IEEE 15288:2015. The generic document types (which can be referred to as information item types) are used to identify the information necessary to support the processes. For each life‐cycle process or service, it would be possible to prepare a policy, plan, procedures and reports, as well as numerous records, requests, descriptions and specifications. Such an elaboration of the documentation schema would be more rigorous than specified by ISO/IEC/IEEE 12207:2017 or ISO/IEC/IEEE 15288:2015. As ISO/IEC/IEEE 15288:2015, 1.4 points out, "The users of this document are responsible for selecting a life cycle model for the project and mapping the processes, activities, and tasks in this document into that model. The parties are also responsible for selecting and applying appropriate methodologies, methods, models and techniques suitable for the project." Thus, information items are combined or subdivided consistent with the life cycle model, as needed for project or organizational purposes, as further defined in Clause 4 and Clause 5. This document is not a management system standard and does not establish a service management system, quality management system, or asset management system. The scope of this document does not include the following: a) the format or content of recommended input data or input information items, except for the content of those input items that are also output information items; b) instructions on combining or subdividing information items and information item contents of a similar nature; c) guidance on selecting an appropriate presentation format, delivery media and maintenance technology for systems or software life‐cycle data, records, information items or documentation, such as electronic publishing systems, content management systems or data repositories; d) detailed content for information items related to general business, contractual, organizational and financial management that is not specific to systems and software engineering and engineering service management, such as business strategies, contract change notices (agreement change report), human resources and investment policies, personnel selection criteria, financial budgeting and accounting policies and procedures, cost reports, or payroll data; e) information items showing only approval of an ISO/IEC/IEEE 12207:2017 or ISO/IEC/IEEE 15288:2015 subclause, such as ISO/IEC/IEEE 12207:2017, 6.4.10.3 c) 3); f) any ISO/IEC/IEEE 15288:2015 or ISO/IEC/IEEE 12207:2017 subclause not explicitly or implicitly identifying the recording of information about a process, activity or task, for example, ISO/IEC/IEEE 12207:2017, 6.2.4.3 c); g) work products, models, software, and other artifacts of life‐cycle products and services that are not information items or records used in information items. read less

定价： 106元 / 折扣价： 91 元

定价： 149元 / 折扣价： 127 元

The scope is the considerations that arise at key points in the life cycle for a system of interest (SOI) that is considered as a constituent part of a system of systems (SoS). SoS engineering is the process of planning, analyzing, organizing, and integrating the capabilities of a mix of existing and new systems into a system-of-systems capability that is greater than the sum of the capabilities of the constituent parts. It is intended to guide the engineering of the SOI through consideration of potential SoS impacts on system concepts, requirements, design, and operations and maintenance. At each stage of the life cycle of a system, key SoS operational, technical and management considerations are identified as needed to operate effectively in an SoS context.

定价： 66元 / 折扣价： 57 元

This document: --provides supplemental requirements and guidance for the planning and performing of the integration processes given in ISO/IEC/IEEE 15288 and ISO/IEC/IEEE 12207; --provides guidance on the relationship between the integration process and other life cycle processes. --specifies requirements for information items to be produced as a result of using the integration process, including the content of the information items. This document is applicable to: --those who use or plan to… read more use ISO/IEC/IEEE 12207 or ISO/IEC/IEEE 15288, or both, on projects dealing with human-made systems, software-intensive systems, and products and services related to those systems, regardless of the project scope, methodology, size, or complexity; --anyone planning or performing integration activities to aid in ensuring that the application of the integration process and its relationships to other system life cycle processes conform to ISO/IEC/IEEE 15288 or ISO/IEC/IEEE 12207. read less

定价： 78元 / 折扣价： 67 元

This recommended practice describes the selection and repurposing (including design, operation and maintenance) of second-life electric vehicle batteries in energy storage systems with voltage levels of 10kV and below. Various technical indexes of batteries and equipment are assessed in different stages of engineering to evaluate the system efficiency, safety and economic aspects.

定价： 58元 / 折扣价： 50 元

This part of ISO/IEC/IEEE 24748 -- specifies the Technical Management processes from ISO/IEC/IEEE 15288 that are required to be implemented for planning a systems engineering project; gives guidelines for applying the required processes; specifies a required information item, a plan for the technical management and execution of the project that is to be produced through the implementation of the Project Planning process; gives guidelines for the format and content of the required information… read more item, and; provides normative definition of the content of the information item that results from the application of these processes to that end. In this part of ISO/IEC/IEEE 24748 that plan for technical project management is termed the Systems Engineering Management Plan (SEMP). This part of ISO/IEC/IEEE 24748 is applicable to those who use or plan to use ISO/IEC/IEEE 15288 on projects dealing with man-made systems including software-intensive systems, software products, and services related to those systems and products; those who are responsible for the technical management of projects concerned with the engineering of systems; those responsible for executing ISO/IEC/IEEE 15288 system life cycle processes at a project level; organizations and individuals who are subcontracting a project management effort; anyone developing engineering management documentation to complete technical planning aspects of their project's processes. In many organizations, the various responsibilities of technical management are assigned to more than one person. Where the term "technical manager" or "systems engineering manager" is used in this part of ISO/IEC/IEEE 24748, the guidance, advice or normative requirement applies to the applicable role within the project or organization. This part of ISO/IEC/IEEE 24748 is intended to provide guidance for two-party situations and may be equally applied where the two parties are from the same organization. This part of ISO/IEC/IEEE 24748 can also be used by a single party as self-imposed tasks. This part of ISO/IEC/IEEE 24748 can also serve as guidance in multi-party situations, where high risks are inherent in the supply and integration of complex systems, and procurement can involve several suppliers, organizations or parties. read less

定价： 104元 / 折扣价： 89 元

定价： 399元 / 折扣价： 340 元

This document provides guidance and recommendations for assurance of a selected claim about the system-of-interest by achieving the claim and show in the achievement. The guidance and commendations are given in a system assurance process view C/IEEE 15288 and a software assurance process view on top of IS0/IEC/IEEE 12207.

定价： 72元 / 折扣价： 62 元