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(1) When agencies acquire products and services, various statutes and executive orders (identified in part 23) require consideration of sustainable acquisition (see subpart 23.1 ) including--

(i) Energy-efficient and water-efficient services and products (including products containing energy-efficient standby power devices) (subpart 23.2 );

(ii) Products and services that utilize renewable energy technologies (subpart 23.2 );

(iii) Products containing recovered materials (subpart TOMS Womens Del Rey Sneaker Navy Light Burst eIsiMbu

(iv) Biobased products (subpart 23.4 );

(v) Environmentally preferable products and services, including EPEAT®-registered electronic products and non-toxic or low-toxic alternatives (subpart AllhqFashion Womens Solid PU LowHeels Pullon Round Closed Toe Boots Blue 4KooH
); and

(vi) Non-ozone depleting substances, and products and services that minimize or eliminate, when feasible, the use, release, or emission of high global warming potential hydrofluorocarbons, such as by using reclaimed instead of virgin hydrofluorocarbons (subpart MICHAEL Michael Kors Womens Kendrick Slip On Closed Toe Vanilla Size 75 7osmrKpHd

(2) Unless an exception applies and is documented by the requiring activity, Executive agencies shall, to the maximum practicable, require the use of products and services listed in paragraph (d)(1) of this section when--

(i) Developing, reviewing, or revising Federal and military specifications, product descriptions (including commercial item descriptions), and standards;

(ii) Describing Government requirements for supplies and services; and

(iii) Developing source-selection factors.

(e) Some or all of the performance levels or performance specifications in a solicitation may be identified as targets rather than as fixed or minimum requirements.

(f) In accordance with Section 508 of the Rehabilitation Act of 1973 (29 U.S.C. 794d), requiring activities must prepare requirements documents for electronic and information technology that comply with the applicable accessibility standards issued by the Architectural and Transportation Barriers Compliance Board at 36 CFR part 1194 (see fereshte Womens Summer Peep Toe Bootie Casual Sling Open Back Shoes Chunky Block Heel Sexy Dress Sandal Brown uAcUEBOkXS

(g) Unless the agency Chief Information Officer waives the requirement, when acquiring information technology using Internet Protocol, the requirements documents must include reference to the appropriate technical capabilities defined in the USGv6 Profile (NIST Special Publication 500-267) and the corresponding declarations of conformance defined in the USGv6 Test Program. The applicability of IPv6 to agency networks, infrastructure, and applications specific to individual acquisitions will be in accordance with the agency’s Enterprise Architecture (see OMB Memorandum M-05-22 dated August 2, 2005).

(a) Recommendations for changes to standardization documents listed in the GSA Index of Federal Specifications, Standards and Commercial Item Descriptions should be submitted to the --

General Services Administration Federal Supply Service Office of Acquisition Washington, DC 20406.

Agencies shall submit recommendations for changes to standardization documents listed in the DoDISS to the cognizant preparing activity.

(b) When an agency cites an existing standardization document but modifies it to meet its needs, the agency shall follow the guidance in Federal Standardization Manual and, for Defense components, DoD 4120.24-M, Defense Standardization Program Policies and Procedures.

Acquisition organizations shall communicate with customers to determine how well the requirements document reflects the customer’s needs and to obtain suggestions for corrective actions. Whenever practicable, the agency may provide affected industry an opportunity to comment on the requirements documents.

(a) The contracting officer shall insert the provision at InterestPrint Womens Comfort Mary Jane Flats Casual Walking Shoes Multi 9 uhEuH
, Availability of Specifications Listed in the GSA Index of Federal Specifications, Standards and Commercial Item Descriptions, FPMR Part 101-29, in solicitations that cite specifications listed in the Index that are not furnished with the solicitation.

(b) The contracting officer shall insert the provision at 52.211-2 , Availability of Specifications, Standards, and Data Item Descriptions Listed in the Acquisition Streamlining and Standardization Information System (ASSIST), in solicitations that cite specifications listed in the ASSIST that are not furnished with the solicitation.

(c) The contracting officer shall insert a provision substantially the same as the provision at 52.211-3 , Availability of Specifications Not Listed in the GSA Index of Federal Specifications, Standards and Commercial Item Descriptions, in solicitations that cite specifications that are not listed in the Index and are not furnished with the solicitation, but may be obtained from a designated source.

(d) The contracting officer shall insert a provision substantially the same as the provision at 52.211-4 , Availability for Examination of Specifications Not Listed in the GSA Index of Federal Specifications, Standards and Commercial Item Descriptions, in solicitations that cite specifications that are not listed in the Index and are available for examination at a specified location.

As used in this subpart—

“Postconsumer material” means a material or finished product that has served its intended use and has been discarded for disposal or recovery, having completed its life as a consumer item. Postconsumer material is a part of the broader category of “recovered material.” For paper and paper products, postconsumer material means “postconsumer fiber” defined by the U.S. Environmental Protection Agency (EPA) as—

Longer version of the above paper is at Online Experimentation at Microsoft (sanitized Thinkweek 2009)https://bit.ly/expPracticalLessons By Ron Kohavi, Thomas Crook, Roger Longbotham, Brian Frasca, Randy Henne, Juan Lavista Ferres, Tamir Melamed The ThinkWeek paper was recognized as a top-30 ThinkWeek at Microsoft.

Controlled experiments on the web: survey and practical guide (2009) Ron Kohavi, Roger Longbotham, Dan Sommerfield, Randy Henne

Abstract: The web provides an unprecedented opportunity to evaluate ideas quickly using controlled experiments, also called randomized experiments, A/B tests (and their generalizations), split tests, Control/Treatment tests, MultiVariable Tests (MVT) and parallel flights. Controlled experiments embody the best scientific design for establishing a causal relationship between changes and their influence on user-observable behavior. We provide a practical guide to conducting online experiments, where end-users can help guide the development of features. Our experience indicates that significant learning and return-on-investment (ROI) are seen when development teams listen to their customers, not to the Highest Paid Person’s Opinion (HiPPO). We provide several examples of controlled experiments with surprising results. We review the important ingredients of running controlled experiments, and discuss their limitations (both technical and organizational). We focus on several areas that are critical to experimentation, including statistical power, sample size, and techniques for variance reduction. We describe common architectures for experimentation systems and analyze their advantages and disadvantages. We evaluate randomization and hashing techniques, which we show are not as simple in practice as is often assumed. Controlled experiments typically generate large amounts of data, which can be analyzed using data mining techniques to gain deeper understanding of the factors influencing the outcome of interest, leading to new hypotheses and creating a virtuous cycle of improvements. Organizations that embrace controlled experiments with clear evaluation criteria can evolve their systems with automated optimizations and real-time analyses. Based on our extensive practical experience with multiple systems and organizations, we share key lessons that will help practitioners in running trustworthy controlled experiments.

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Thomas Crook, Brian Frasca, Ron Kohavi, and Roger Longbotham

Abstract: Controlled experiments, also called randomized experiments and A/B tests, have had a profound influence on multiple fields, including medicine, agriculture, manufacturing, and advertising. While the theoretical aspects of offline controlled experiments have been well studied and documented, the practical aspects of running them in online settings, such as web sites and services, are still being developed. As the usage of controlled experiments grows in these online settings, it is becoming more important to understand the opportunities and pitfalls one might face when using them in practice. A survey of online controlled experiments and lessons learned were previously documented in Controlled Experiments on the Web: Survey and Practical Guide (Kohavi, et al., 2009). In this follow-on paper, we focus on pitfalls we have seen after running numerous experiments at Microsoft.The pitfalls include a wide range of topics, such as assuming that common statistical formulas used to calculate standard deviation and statistical power can be applied and ignoring robots in analysis (a problem unique to online settings). Online experiments allow for techniques like gradual ramp-up of treatments to avoid the possibility of exposing many customers to a bad (e.g., buggy) Treatment. With that ability, we discovered that it’s easy to incorrectly identify the winning Treatment because of Simpson’s paradox.

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