**3.7 Criteria and metrics for sustainability**

Criteria and measurements for supportability of a product items to spoke to in three categories [20] there are


Based on the first-order effects of ICT supply, Second order effects of ICT use and Third order effects of Systemic effect of ICT respectively. Hardware obsolescence should be a genuine quality property of Green and Sustainable Software,


**Table 1.**

*Estimate of home energy consumption of computers.*

which belongs to the directly related criterion and metrics model part. Indirectly related criterion and metrics for green and sustainable software address second and third order effects induced by software product [27, 28].

## **4. Green IT and Green ICT**

We expect that computerized joining has aggravated the innovations of calculation and media communications to a degree that makes their division out of date in this unique situation. The term "Green IT" got comfortable after the production of a Gartner report in 2007 [22] and was later on joined by "Green Computing," "Green Software," "Green Software Engineering," and "Green Information Systems (IS)."

The fundamental distinction between Green in IT and Green by IT [21] is the pretended by the IT and the concentration of the greenness. The electricity consumption of computers, computer monitors, and signage displays varies greatly,

**71**

**Figure 4.**

*Green software, green hardware and Green IT.*

*Green and Sustainability in Software Development Lifecycle Process*

even within models of similar sizes and feature sets. To date, no federal or state regulations provide incentives for implementing cost-effective, readily available technologies to improve the performance of less efficient models. The five form factors considered in this report are desktops, notebooks, small-scale servers, worksta-

With help of the above factors we can find green in and by software and hardware (**Figure 3**). This combination creates the green software and hardware

The most substantial adjustments to the Energy Commission's draft staff report include dividing desktop computers into four categories with different efficiency levels rather than three categories with a smooth function, adjusting the levels of energy allowances for each category, and modifying the effective dates for the standards. These adjustments could be made while maintaining the magnitude of statewide energy savings. Staff's proposal is an effort to take international experience, stakeholder input, and data analytics and accomplish feasible and attainable energy savings for California in both long and short term. The proposed regulations are divided into three primary categories: desktops and thin clients, notebooks, and

*DOI: http://dx.doi.org/10.5772/intechopen.88030*

small-scale servers and workstations (**Figure 4**).

tions, and thin clients.

relationship which is Green IT.

**4.1 Efficiency standards**

**Figure 3.** *Green IS and Green IT.*

*Green and Sustainability in Software Development Lifecycle Process DOI: http://dx.doi.org/10.5772/intechopen.88030*

even within models of similar sizes and feature sets. To date, no federal or state regulations provide incentives for implementing cost-effective, readily available technologies to improve the performance of less efficient models. The five form factors considered in this report are desktops, notebooks, small-scale servers, workstations, and thin clients.

With help of the above factors we can find green in and by software and hardware (**Figure 3**). This combination creates the green software and hardware relationship which is Green IT.
