snaker-core/src/main/java/org/snaker/engine/core/SnakerEngineImpl.java
public Order startInstanceByName(String name, Integer version,
			String operator, Map<String, Object> args) {
		if(args == null) args = new HashMap<String, Object>();
		Process process = process().getProcessByVersion(name, version);
		process().check(process, name);
		return startProcess(process, operator, args);
	}
public Order startInstanceByName(String name, Integer version,
			String operator, Map<String, Object> args) {
		if(args == null) args = new HashMap<String, Object>();
		Process process = process().getProcessByVersion(name, version);
		process().check(process, name);
		return startProcess(process, operator, args);
	}
根据流程名称、版本号、操作人、参数列表启动流程实例
@since 1.3