Information technology - Measurement and rating of performance of computer-based software systems
This International Standard defines how user oriented performance of computer-based software systems (CBSS)
may be measured and rated. A CBSS is a data processing system as it is seen by its users, e.g. by users at various
terminals, or as it is seen by operational users and business users at the data processing center.
A CBSS includes hardware and all its software (system software and…
Information technology — Measurement and rating of performance of computer-based software systems
This International Standard defines how user oriented performance of computer-based software systems (CBSS)
may be measured and rated. A CBSS is a data processing system as it is seen by its users, e.g. by users at various
terminals, or as it is seen by operational users and business users at the data processing center.
A CBSS includes hardware and all its software (system software and…
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures -...
Optical fibre connectors for polarization maintaining fibre shall align the birefringence axes of the two mating fibres. The keying accuracy of PM connector plugs should be specified to realize PMF connection with high extinction ratio propagation.
The purpose of this standard is to measure the keying accuracy of a polarization maintaining fibre connector.
Information technology — Fibre Distributed Data Interface (FDDI) — Part 4: Single Mode Fibre Physica...
This part of ISO/IEC 9314 specifies the Single-mode fibre Physical Layer Medium Dependent (SMF-PMD) requirements for the Fibre Distributed Data Interface (FDDI).FDDI provides a high bandwidth (100 megabits per second) general purpose interconnection among computers and peripheral equipment using a fibre optic waveguide as the transmission medium. The FDDI may be configured to support a sustained…
Fibre optic connector interfaces - Part 12: Type FS connector family
Defines the standard interface dimensions for the type FS connector family which is a duplex connector set of plug and adaptor configuration. The plug has a pair of cylindrical spring loaded abutting ferrules of 2,5 mm nominal ferrule diameter. The optical alignment mechanism is a rigid bore or resilient sleeve contained within the adaptor. It includes a hand-released latch coupling. The plug has…
A Guide to Identifying Significant Environmental Aspects
1. Scope
1.1 This guide provides tools to help develop an objective and consistent approach to understanding how your organization can better manage the environmental aspects it controls and over which it has an influence. Suggestions in this guide do not add to the requirements of ISO 14001. Figure 2 shows how your organization's activities, products, and services have the potential…
Recommended methods of measurements on receivers for television broadcast transmissions - Part 5: El...
Applies to television receivers designed for the reception of television broadcasts using the two-channel digital sound system. The sound coding-system is based on NICAM 728 and is transmitted by a quadrature phase-shift keying (QPSK) modulated digital subcarrier. This consolidated version consists of the first edition (1992) and its amendment 1 (1999). Therefore, no need to order amendment in…
