Other companies explore ways how they can use chatbots internally, for example for Customer Support, Human Resources, or even in Internet-of-Things (IoT) projects. Overstock , for one, has reportedly launched a chatbot named Mila to automate certain simple yet time-consuming processes when requesting for a sick leave.  SAP partnered with Kore Inc, a US-based chatbot platform vendor, to build enterprise-oriented chatterbots for certain SAP products like SAP Hana Cloud Platform , SAP Cloud for Customer (C4C), SAP SuccessFactors and Concur .  Other large companies such as Lloyds Banking Group , Royal Bank of Scotland , Renault and Citroën are now using automated online assistants instead of call centres with humans to provide a first point of contact. A SaaS chatbot business ecosystem has been steadily growing since the F8 Conference when Zuckerberg unveiled that Messenger would allow chatbots into the app.  
For the Analytical Writing section, each essay receives a score from at least one trained rater, using a six-point holistic scale. In holistic scoring, raters are trained to assign scores on the basis of the overall quality of an essay in response to the assigned task. The essay is then scored by e-rater ® , a computerized program developed by ETS that is capable of identifying essay features related to writing proficiency. If the human and the e-rater scores closely agree, the average of the two scores is used as the final score. If they disagree, a second human score is obtained, and the final score is the average of the two human scores.
1) Automated Essay Scoring programs predict how humans would score an essay
2) They require a "training set" of essays scored by human raters, a sample of the full set of essays to be scored
3) The don't "read" an essay like humans do, rather, they use hundreds of algorithms simultaneously to "faithfully replicate" human grading
4) They place no constraints on what kinds of writing can be scored (except poetry and some other classes of creative writing) or what kinds of questions can be asked. Technology has now reached the point where if humans can reliably evaluate the quality of an essay, then AES programs can reliably predict those quality ratings.