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The goal of a staged rollout is to make the deployment of new features as stable and reliable as possible by controlling user exposure in the early stages and monitoring the impact of the feature on key business metrics at each stage. A staged rollout is different from standard A/B testing in many ways, as outlined in the table below:

Feature rollout can be risky if the target population of the rollout is large and there is a lack of effective monitoring to measure the impact of the feature on key business metrics.

The XP we developed has two components: a staged rollout configuration process and a new monitoring algorithm. To control the user’s risk of exposure to error, we stage the rollout process to be a gradual ramp-up. To enable more efficient and precise rollout monitoring, we use an algorithm which enables us to continuously monitor the impact of the feature on key metrics while controlling false positive rates.

The null hypothesis is that the new feature (treatment) does not have a negative effect on the key metrics. For instance, rather than reporting the raw number of trips from a high level, the algorithm identifies if the differences in trip rate (defined as the proportion of sessions containing a trip) are significant between the control (feature-disabled) and treatment (feature-enabled) groups.

Figure 1: The rollout analytics algorithm uses event log information to identify outages.

To determine if the difference between these metrics was significant when continuously monitored, we experimented with using three different types of tests, a t-test, a sequential likelihood ratio test (SLRT), and a delete-a-group jackknife variance estimation, in our algorithm.

The first test we tried using was a t-test. Our t-test produced an inflated false positive rate of 50 percent accuracy at a confidence level of 95 percent. This outcome was expected since a t-test, like other fixed-horizon tests, is not designed for continuous monitoring.

Next, we decided to adjust our algorithm to perform an SLRT with an authentic for sale Castañer wedge sandals manchester great sale clearance good selling buy cheap best wholesale dtx9e
in the hope of accurately detecting regression. While more accurate than the t-test model, the original format of the SLRT gave a false positive rate of just over 30 percent. Since our metrics are conducted at the session level, it was problematic that the behaviors of two independent sessions werehighly correlated with each other when these sessions came from the same user.

The final test we tried was a sequential likelihood ratio test using the delete-a-group jackknife variance estimation. We found that this test provided us with a 5 percent false positive rate when continuously monitored, which was sufficient for our needs.

Though the term has been used contextually to mixed effect, " business process management " (BPM) can generally be defined as a discipline involving a combination of a wide variety of business activity flows (e.g., automation, modeling, and optimization) that strives to support the goals of an enterprise within and beyond multiple boundaries, involving many people, from employees to customers and external partners. [17] A major part of BPM's enterprise support involves the continuous evaluation of existing processes and the identification of ways to improve upon it, resulting in a cycle of overall organizational improvement.

Knowledge management is the definition of the knowledge that employees and systems use to perform their functions and maintaining it in a format that can be accessed by others. The Duhon and the Gartner Group have defined it as "a discipline that promotes an integrated approach to identifying, capturing, evaluating, retrieving, and sharing all of an enterprise's information assets. These assets may include databases, documents, policies, procedures, and previously un-captured expertise and experience in individual workers." [18]

Total quality management (TQM) emerged in the early 1980s as organizations sought to improve the quality of their products and services. It was followed by the Six Sigma methodology in the mid-1980s, first introduced by Motorola. Six Sigma consists of statistical methods to improve business processes and thus reduce defects in outputs. The "lean approach" to quality management was introduced by the Toyota Motor Company in the 1990s and focused on customer needs and reduction of wastage. [19] [20] [21]

Advances in information technology over the years, have changed business processes within and between business enterprises. In the 1960s, operating systems had limited functionality, and any workflow management systems that were in use were tailor-made for the specific organization. The 1970s-1980s saw the development of data-driven approaches, as data storage and retrieval technologies improved. Data modeling rather than process modeling was the starting point for building an information system. Business processes had to adapt to information technology because process modeling was neglected. The shift towards process-oriented management occurred in the 1990s. Enterprise resource planning software with workflow management components such as SAP, Baan, Mens ASICS Gel Quantum 180 2 Running Shoes cheap sale marketable new styles sale online outlet cheap authentic free shipping VTnVIxyEQf
, Oracle and JD Edwards emerged, as did business process management systems (BPMS) later. Clear Conscience Black under online Mdk3l

From Wikipedia, the free encyclopedia

Series 7: The Contenders is a 2001 dark comedy directed by Daniel Minahan . The film is presented as a marathon of the seventh series of an American reality television show called The Contenders, where six people, picked at random from a national lottery, are each given a pistol and forced to hunt and kill each other for the cameras. The film is a dark satire of the reality television genre. It stars looking for New Look Sling Back Cone Heeled Shoe wide range of sale online cheap low shipping fee CJS1hNfRYH
as Dawn, the reigning champion from the fifth and sixth series.


The film is shot in the style of a reality TV series. Five new contestants are selected in a random lottery and, along with the winner of the previous series, comprise the six Contenders. The film purposely leaves many key details unexplained, as the viewer is supposed to be watching only what the creators actually aired in the fictional TV show. How the show became so powerful as to randomly select people to be killed is unexplained, but the Contenders treat it as something they cannot control. Contenders are given a pistol, though they may acquire other weapons, and the last one left alive is the winner. Contestants are forced to play the game, regardless of their wishes. A contender who wins three tours of the game is freed from it.

Each series of The Contenders is played in the limits of a city or town. Series 7 is set in Newbury, Connecticut, the hometown of Dawn Lagarto ( Brooke Smith ), the current and longest reigning champion. She has won two tours and just needs to win one more to be set free. Dawn is eight months pregnant and hopes to win the game for her baby. The show hosts a lottery, with Contenders chosen by whichever social security number appears. The five contenders selected are:

Series 7 begins with a recap of the end of Series 6 : the opening scene shows the heavily pregnant Dawn enter a convenience store and fatally shoot a man in a seemingly random act. The show credits then roll, its rules are explained in voice-over narration, and the contenders are introduced. Interview segments interspersed with several of the contenders' early attempts to attack each other offer insight and background on the contenders. Most unusually, Dawn and Jeffrey already know each other. They were high school sweethearts, breaking up after Dawn had an abortion and Jeffrey came to believe he was gay. Jeffrey, now married to Doria ( Angelina Phillips ), and Dawn meet, and the terminally ill Jeffrey asks Dawn to kill him. Dawn agrees and leaves to procure drugs, so Jeffrey can painlessly overdose.

Lindsay travels to Franklin's trailer home and, after a pep talk by her parents, attacks him. They exchange fire, but neither is killed, with Lindsay suffering a wound to her arm. Meanwhile, Anthony tries to flee with his young daughter but is badly injured (supposedly from a "self-inflicted" knife wound to the back). Connie and Dawn separately track him to the hospital, where Connie kills him by lethal injection. Following Anthony's death, the remaining contenders receive notes to meet someone from "The Underground" at a local mall, promising help escaping the game. At the mall, security confiscates Franklin's pistol, but Lindsay is passed, after stating she is part of the show. Dawn, waiting near a store, spots Lindsay, as does Franklin. Franklin creeps up behind Lindsay and beats her to death, in front of her horrified parents. Franklin announces that the show is fixed, but, before he can explain, he is killed by Connie, the mastermind behind the notes. The only contenders left are Dawn, Jeffrey, and Connie.

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British World English something


1 A thing that is unspecified or unknown.

2 Used in various expressions indicating that a description or amount being stated is not exact.

1 informal as submodifier Used for emphasis with a following adjective functioning as an adverb.

2 archaic, dialect as submodifier To some extent; somewhat.


or something

informal Added as a reference to an unspecified alternative similar to the thing mentioned.

quite (or really) something

informal Something considered impressive or notable.

something else

informal An exceptional person or thing.

something like

1 An amount in the region of.

2 Rather like.

something of

To some degree.

there is something in —

— is worth considering; there is some truth in —

twenty-something (thirty-something, forty-something, etc.)

informal An unspecified age between twenty and thirty (or thirty and forty, forty and fifty, etc.)

as noun

Old English sum thing (see some, thing).




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